![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
If an isosceles triangle has a right angle and its area is 50 square centimeters, then the sum of its two right angles is______ Centimeter
Because 50 × 2 = right angle side × right angle side,
So the right angle side is 10 centimeters,
2 × 10 = 20 (CM);
A: the sum of the two right angles is 20 cm
So the answer is: 20
The sum of two right angle sides of a right triangle is 14 cm and the area is 24 cm 2
If one of the right angles is xcm, the other is (14-x) cm long,
One
2×x（14-x）=24，
It is found that X1 = 6, X2 = 8,
When X1 = 6, 14-x = 8;
When x2 = 8, 14-x = 6;
A: the lengths of the two right angles are 6 and 8
The right angle side of an isosceles triangle is one fifth of a decimeter long and its area is () square centimeter?
1 / 5 decimeter = 2 cm
The area is 2 * 2 * 1 / 2 = 2 square centimeters
The three sides of a right triangle are 6cm, 8cm and 10cm respectively. The area of this triangle is () square centimeter
The three sides of a right triangle are 6cm, 8cm and 10cm respectively
6²+8²=36+64=100=10²
So, according to the Pythagorean theorem, 6cm and 8cm are two right angle sides
The area of this triangle is 1 / 2 × 6 × 8 = 24 square centimeter
One side of an isosceles right triangle is 8 cm. What is the largest square centimeter and the smallest square centimeter
Let a triangle have a right angle side, then the base edge is a radical 2
Therefore, the area is the smallest when the bottom side length is 8, and the area is the largest when the right angle side length is 8
Maximum area = 8 * 8 / 2 = 32 square centimeter
Minimum area = (8 / root 2 * / root 2) / 2 = 16 square centimeter
9. An isosceles right triangle has a side of 8 cm. Its maximum area is () square centimeter and its minimum is () square centimeter 9. An isosceles right triangle has a side of 8 cm. Its maximum area is () square centimeter and its minimum is () square centimeter
8 × 8 △ 2 Minimum: 8 △ 2 = 4 (CM)
=64÷2 4×8÷2
=32（cm²） =32÷2
=16（cm²）
An isosceles right triangle has a right angle side of 8 cm long and its area is______ Square centimeter
8×8÷2
=64÷2
=32 (square centimeter)
A: its area is 32 square centimeters;
So the answer is: 32
The sum of two right angle sides of a right triangle is 14 cm and the area is 24 cm 2
If one of the right angles is xcm, the other is (14-x) cm long,
One
2×x（14-x）=24，
It is found that X1 = 6, X2 = 8,
When X1 = 6, 14-x = 8;
When x2 = 8, 14-x = 6;
A: the lengths of the two right angles are 6 and 8
Given that the sum of the two right angles of a right triangle is 14 and the length of the hypotenuse is 10, find the area of the triangle
If one right angle side length is x, the other right angle side length is 14-x
X^2+(14-X)^2=10^2
X^2+196-28X+X^2=100
X^2-14X+48=0
(X-6)(X-8)=0
X = 6 or x = 8
When x = 6, the other side = 14-6 = 8
When x = 8, the other side = 14-8 = 6
The area of this triangle
=8*6/2
=24
The sum of two right angle sides of a right triangle is 14 cm and the area is 24 cm 2
If one of the right angles is xcm, the other is (14-x) cm long,
One
2×x（14-x）=24，
It is found that X1 = 6, X2 = 8,
When X1 = 6, 14-x = 8;
When x2 = 8, 14-x = 6;
A: the lengths of the two right angles are 6 and 8
RELATED INFORMATIONS
- 1. In the triangle ABC, the angle a plus the angle B is equal to the angle c, and the angle B is equal to twice the angle A. find the degree of the angle a, the angle B and the angle C
- 2. In the triangle ABC, angle c + angle a = 2, angle B, angle c - angle a = 80 degrees, calculate the angles a, B, C for several degrees and tell how to calculate them
- 3. In ABC + S 2, we find the maximum area of △ 2, C = 2 for the root of ABC
- 4. 1. The degree ratio of the three inner angles of a triangle is 3:2:7. What is the largest angle? 2. There are three workshops in a factory. There are 90 people in workshop a. the number of people in workshop B is 4 / 5 of that in workshop a and 4 / 3 in workshop C. how many people are there in workshop C? 3. Xiaogang read a book, read 56 pages every day, read 4 days, just read 8 / 11 of the whole book. How many pages are there in this book? How many pages are left? 4. The tallest animal in the world is giraffe. A giraffe is 5 meters tall, 2 / 3 higher than an elephant. How many meters is the elephant tall?
- 5. In the acute angle △ ABC, if the degrees of the three inner angles are prime numbers, then the triangle () A. There is only one isosceles triangle B. There are at least two isosceles triangles C. There is only one, but not an isosceles triangle D. There are at least two of them, including non isosceles triangles
- 6. Given that the ratio of the degrees of the three inner angles of a triangle is 4:1:1, then the triangle is () triangle 1. Right angle 2, acute angle 3, obtuse angle
- 7. In △ ABC, ∠ a = 1 / 3 ∠ B = 1 / 5 ∠ C, calculate the degree of each internal angle of a triangle
- 8. If the ratio of the three inner angles of a triangle is 9:4:5, then the triangle is ()
- 9. As shown in the figure, △ ABC is an isosceles right triangle, ∠ a = 90 ° and points P and Q are moving points on AB and AC respectively, and satisfy BP = AQ, D is the midpoint of BC (1) It is proved that △ PDQ is an isosceles right triangle; (2) When the point P moves to where, the quadrilateral apdq is square, and explain the reason
- 10. As shown in the figure, in △ ABC, ∠ BAC = 90 °, extend Ba to point d so that ad = half AB, points E and F are the midpoint of edge BC and AC respectively. Find DF = AE
- 11. If the area of a triangle is 30 square centimeters less than that of a parallelogram equal to its base and height, what is the area of the triangle?
- 12. The area of a parallelogram is 24 square centimeters. What is the area of the triangle with its equal base and height?
- 13. The circumference of a circular flower bed is 31.4 meters, and 2 / 5 of the poisonous land in the flower bed is planted with roses. How many square meters is the planting area of rose flowers?
- 14. 1. Around a circular flower bed with a diameter of 16 meters, there is a stone road with a width of 2 meters. What is the area of this stone road? 2. The bottom surface of a wooden basin is round. A 2.552m long iron wire is enclosed at its bottom, and 0.04m is used at the wire joint. What is the diameter of the bottom surface of the basin?
- 15. The perimeter of a circular flower bed is 18.84m. A stone road with a width of 0.5m is paved around it to calculate the area of the stone road
- 16. There is a circular flower bed with a diameter of 16m, and a 2m wide path is built around it (1) What is the area of this path? (2) How many lamps should be installed along the edge of the circular path every 5m?
- 17. A school plans to plant turf on a triangular open space. If it is known that this kind of turf costs a yuan per square meter, it needs at least () A. 450A yuan b.225a yuan c.150a yuan d.300a yuan Triangle ABC, ab = 20m, AC = 30m,
- 18. An isosceles right triangle flower bed, a right angle side of the triangle is 14 meters long. What is the area of this triangle flower bed
- 19. The height of a triangle is 5 or 2 meters. If the height is extended by 2 meters, the area of the triangle line will be increased by 10 square meters. What is the area of the original triangle
- 20. The area of a triangle is 12.5 DM2 less than that of a parallelogram of equal base and height______ dm2．