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It is known that the ratio of two right sides of a right triangle is 1:2, and the length of the hypotenuse is Find the area of this right triangle
Let the shorter right angle side be x, then the other right angle side is 2x. According to Pythagorean theorem, X2 + (2x) 2 = 50=
10．
The area of a right triangle is 1
2 x
10×2
10=10．
When the two right angles of a right triangle are 9 cm and 40 cm respectively, how long is the oblique side
According to the Pythagorean theorem, the square of the hypotenuse of a right triangle is equal to the sum of the squares of the two right sides
The length of two right angles of a right triangle is 3.9 cm and 5.2 cm, and the hypotenuse is 6.5 cm. What is the height of the hypotenuse
3.9*5.2/2*2/6.5=3.12
The AB side length of the right triangle ABC is 3cm, BC side length is 4cm, AC side length is 5cm. After rotating the AB side as the axis, a solid figure is formed Can you calculate the volume of this solid figure?
A right triangle should be divided into three cases, because you don't know which side to rotate around. 1. Rotate around the right angle side. Take AB as an example, the bottom of a cone around the city is 2BC = 8, and the height is 3. If you bring in the coning formula, you can draw another right angle side in the same way. 2. If you rotate with an oblique side, it may be troublesome
The three sides of right triangle ABC are AC = 3, ab = 1.8, BC = 2.4, ED is perpendicular to AC, and ED = ah, what is the side length of square bfeg? The bottom one is C on the far right and G in the middle
Because AC = 3, ab = 1.8, BC = 2.4, BD = 1.44, because ed = ah, be = bd-ed = 1.44-ah. In the right triangle Berg, let BG = eg = a, so a = radical 2 (1.44-ah) / 2, so the side length of square bfeg is: root 2 (1.44-ah)
It is known that: as shown in the figure, if the right angle side length of the isosceles right triangle ABC is 16, D is on AB, and DB = 4, M is a moving point on AC, then the minimum value of DM + BM is () A. 20 B. 16 Two C. 16 D. 24
Connecting ab ′, ∵ ABC is an isosceles right triangle, BAC = 45 °, ∵ point B and point B 'are symmetric about the straight line AC, ? be = B ′ e, ? AEB = ∵ AEB ∵ in △ Abe and △ ab ′ e, ∵ AE = AE ∠ AEB ∵ be = B ′ e, ? Abe ≌△ ab ′ e, ABB ′ is isosceles right triangle
As shown in the figure, in the isosceles right triangle ABC, P is a point on the hypotenuse, PE is perpendicular to AB, PF is perpendicular to AC, It is proved that De is perpendicular to DF
There are pictures and processes, please adopt after reference!
The length of the two right sides of a right triangle is 14 cm. Their length ratio is 3 to 4. If the hypotenuse is 10 cm long, what is the height of the hypotenuse
14 × 3 / (3 + 4) = 6 (CM) the length of a right angle side
14 × 4 / (3 + 4) = 8 (CM) the length of the other right angle side
Let the height on the hypotenuse be h cm, and the base of the triangle formed by the height on the hypotenuse and the right angle side of 6cm is x cm
X square + H square = 6 square = 36
H square + (10-x) square = 8 square = 64
The solution is: x = 3.6
H = 6.99696
2. Let the side length of two right angles be a cm and B cm respectively, and the height on the bevel side is h cm
Then a + B = 14, a: B = 3:4
So a = 6 cm, B = 8 cm
6X8÷2=10Xh÷2
H = 4.8 cm
The length of the hypotenuse of a right triangle is 10 cm, and the length ratio of the two right sides is 3:4
Because the length of the right angle side is 3:4
The ratio of the three sides is 3:4:5
So a right angle side is: 10 ÷ 5 × 3 = 6cm
The other right angle side is: 10 △ 5 × 4 = 8cm
The area is: 6 × 8 △ 2 = 24 square centimeter
If you don't understand, you can ask
If you have any help, please accept it. Thank you
The length of two right angle sides of a right triangle is 3:4 and the sum is 14 cm. The length of the hypotenuse is 10 cm. How many cm is the height on the hypotenuse?
The two right angles are 14 × 3 / (3 + 4) = 6, 14 × 4 / (3 + 4) = 81 / 2 × 6 × 8 × (1 / 2 × 10) = 4.8
RELATED INFORMATIONS
- 1. How to find the length of the hypotenuse when we know the length of the two right sides of a right triangle Don't use Pythagorean theorem and function method, stand on the position of fifth grade students, use their method
- 2. Find the area of a right triangle with a hypotenuse length of 25 cm and a right angle side length of 7 cm
- 3. If the area of a right triangle is 18 cm and the root of one right angle side is 3 cm, find the length of the other right angle side and the height of the hypotenuse It's the high length of the hypotenuse!
- 4. How many hypotenuse sides of the right triangle are the sum of the right angles? I know: do not need to deal with 6, as long as consider? +? = 7, using Pythagorean theorem calculation, you can know
- 5. In a right triangle, how many degrees does the bisector of two acute angles hold? How many degrees? Why?
- 6. Divide a right triangle into a right triangle and an obtuse triangle with a line
- 7. The waist length of an isosceles right triangle is 2, the distance from the center of gravity of the triangle to the hypotenuse is () A. 2 Two Three B. Two Three C. 2 Three D. 1 Three
- 8. Finding the length of two waists of an isosceles right triangle with known base length of 6
- 9. It is known that in △ ABC, D is a point on AB, and Da = DB = DC
- 10. The figure below is an arbitrary triangle. Draw a line segment to divide the triangle into two triangles with an area ratio of 1:2
- 11. Given that the two right angles of a right triangle are 6 meters and 8 meters respectively, and the other side is 10 meters long, what are the three heights of the right triangle?
- 12. What is the area of an isosceles right triangle whose longest side is 12 cm?
- 13. The waist length of an isosceles right triangle is 4cm, and its area is () square centimeter? The waist length of an isosceles right triangle is 4cm, and its area is () square centimeter?
- 14. For a right triangle, the two right sides are 4cm and 3cm respectively. The side opposite the right angle is 5cm. How many centimeters is the height on the opposite side of the right angle?
- 15. For a right triangle, the lengths of the two right sides are 8 cm and 6 cm respectively, and the side opposite the right angle is 10 cm. How many cm is the height on the opposite side of the right angle?
- 16. The three sides of a right triangle are 50 cm 40 cm 30 cm long. What is the height of the hypotenuse of this right triangle
- 17. What are the characteristics of three sides of a right triangle whose angle is 30? For example, the ratio of three sides of a right triangle of 45 degrees is 1: 1: radical 2, what about a 30 ° right triangle?
- 18. A right triangle, the length of the two right sides are 5cm and 3cm respectively. Rotate one of the right angles as the axis to get the number of the cones
- 19. What is the shape of a right triangle with three centimeters, four centimeters and five centimeters around one of its right angles? What is the height? What is the perimeter of the bottom?
- 20. A right triangle is known to have an acute angle of 30 degrees, but also know the length of an edge? Is there a formula