The circumference of a right triangle is 36 cm, and the length ratio of the three sides is 3:4:5 (1) How many centimeters are the three sides of this triangle? (2) What's the area of this right triangle in square centimeters?

The circumference of a right triangle is 36 cm, and the length ratio of the three sides is 3:4:5 (1) How many centimeters are the three sides of this triangle? (2) What's the area of this right triangle in square centimeters?

(1) 36 ÷ (3 + 4 + 5) = 3cm
Three sides are 3 × 3 = 9 cm
3 × 4 = 12 cm
3 × 5 = 15 cm
(2) The area is 9 × 12 △ 2 = 54 square centimeters

In a right triangle, if the sum of the two right sides is 17 and the square difference of the two straight sides is 119, the length of the hypotenuse is obtained

13

There is a right triangle, the difference between the two right angles is 3, the square of the hypotenuse is 17, and the area of a straight foot triangle is 3——

All the way to the corner is x and the other is y
x-y=3
X + y = 17
Solution
X=4
Y=1
∴1／2XY=2

The sum of the two right angles of a right triangle is 17. If the area is 30, what is the hypotenuse

Let two right angle sides be a, B, and hypotenuse C, then a + B = 17 (a + b) ^ 2 = 144, that is, a ^ 2 + B ^ 2 + 2Ab = 144, so a ^ 2 + B ^ 2 = 84. According to Pythagorean theorem, C = √ 84

If the area of a right triangle is 30 and the sum of the two right sides is 17, what is the length of the hypotenuse of the right triangle

Let each be XY
xy=60,x+y=17
So (x + y) ^ 2 = 289,
2xy=120
So (x + y) ^ 2-2xy = x ^ 2 + y ^ 2 = 169 = 13 ^ 2
So the answer is 13
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The sum of two sides of a right triangle is 17 cm, and the hypotenuse is 13 cm

Let X be the straight angle, then 17-x be the other right angle;
According to Pythagorean theorem, there is the following equation: x ^ 2 + {(17-x)} ^ 2 = {13} ^ 2
The solution is x = 5 or 12, and the other side is 12 or 5;
Therefore, the length of the two sides must be 12 and 5 respectively;
Therefore, the area of triangle is: S = 12 x 5 x & # 189; = 30
Note: don't forget to write down the unit when you get the final answer

A 45 degree right triangle with a base length of 5?

2/5√2

A right triangle with an internal angle of 45 degrees, the longest side is 12 cm. What is the area of this triangle?

A right triangle with an internal angle of 45 degrees is an isosceles right triangle
The longest side is hypotenuse, which is 12 cm
Right angle side: hypotenuse = 1: radical 2
So the length of right angle side is: 12 / radical 2
Area = 1 / 2 * (12 / radical 2) * (12 / radical 2) = 36

A right triangle, it has an angle of 45 degrees, the hypotenuse of the triangle is 10 cm long, then the area of the triangle is______ Square centimeter

Square area: 10 × 10 = 100 (cm2) triangle area: 100 △ 4 = 25 (cm2) answer: triangle area is 25 square centimeter

If you know that an angle of a right triangle is 45 degrees, find its area

If the length of the right angle side is 1, then the area is 1 / 2. (Note: if the angle is 45, then the two right angle sides are equal)