If the two right sides of a right triangle are 5cm and 12cm respectively, the length of the oblique side is______ The height on the hypotenuse is______ cm．

If the two right sides of a right triangle are 5cm and 12cm respectively, the length of the oblique side is______ The height on the hypotenuse is______ cm．

Because the two right sides of a right triangle are 5cm and 12cm respectively,
So we can know the hypotenuse from Pythagorean theorem=
52+122=13cm，
From the area of the triangle, 1
2×5×12=1
2 × 13 × height on bevel side,
So the height on the hypotenuse is 60
13cm．

Given that the sides of a right triangle are 5cm and 12cm respectively, and the length of the hypotenuse is 13cm, what is the height of the hypotenuse? Urgent!

.
5 * 12 / 13 = self calculation

Three right triangles with 5 cm, 12 cm and 13 cm in length are shown in Fig. 1. Fold their short right angles to the hypotenuse and coincide with the hypotenuse, as shown in Figure 2. What is the area of the shaded part (i.e. the uncovered part) in Figure 2?

Let de = x cm, according to the area formula of triangle, 1
2AB×DE=1
2BD×AC，
Because AB = 13 cm, AC = 5 cm, BD = bc-cd = bc-de = 12-x (CM),
So the equation: 1
2×13x=1
2（12-x）×5
By solving this equation, x = 10
3，
So de = 10
3 (CM);
So the area of the triangle BDE is 1
2×（13-5）×10
Three
=1
2×8×10
Three
=40
3 (square centimeter),
Forty
3 square centimeter = 1
750 square meters;
A: in Figure 2, the area of the shaded part (i.e. the uncovered part) is 1
750 square meters

The difference between the two right angles of a triangle is 5cm and the area is 7cm 2

Let the shorter right angle side be xcm, and the longer one is (x + 5) cm,
One
2x•（x+5）=7，
The result is: x2 + 5x-14 = 0,
∴（x+7）（x-2）=0，
Ψ x = 2 or x = - 7 (omitted)
5+2=7cm，
22+72=
53cm．
The length of the hypotenuse is
53cm．

The difference between the two right sides of a right triangle is 5cm. The area is 7cm. How long is the hypotenuse?

Let a right angle side x, the other side x + 5, then x (x + 5) / 2 = 7, x = 2 or - 7 (round off), then the other side is 7, and the hypotenuse is the root sign (2 ^ 2 + 7 ^ 2) = root 53

The difference between the two right angles of a triangle is 5cm and the area is 7cm 2

Let the shorter right angle side be xcm, and the longer one is (x + 5) cm,
One
2x•（x+5）=7，
The result is: x2 + 5x-14 = 0,
∴（x+7）（x-2）=0，
Ψ x = 2 or x = - 7 (omitted)
5+2=7cm，
22+72=
53cm．
The length of the hypotenuse is
53cm．

The difference between the two right sides of a right triangle is 5cm, and the area is 7. How to calculate the length of the hypotenuse If the side length of the right angle side is x cm and X + 5 cm, then: x(x+5)/2=7 x²+5x-14=0 (x-2)(x+7)=0 X = 2 (x = - 7 rounded off) So the two direct sides are two centimeters and seven centimeters Hypotenuse = √ (2? 2 + 7?) = √ 53 cm

（x2+5x）/2＝7
See

The difference between the two right angles of a triangle is 5cm and the area is 7cm 2

Let the shorter right angle side be xcm, and the longer one is (x + 5) cm,
One
2x•（x+5）=7，
The result is: x2 + 5x-14 = 0,
∴（x+7）（x-2）=0，
Ψ x = 2 or x = - 7 (omitted)
5+2=7cm，
22+72=
53cm．
The length of the hypotenuse is
53cm．

The length of the three sides of a right triangle is 5cm, 13cm and 12cm, and its area is______ .

12×5÷2，
=60÷2，
=30 (square centimeter);
A: the area of this triangle is 30 square centimeters
So the answer is: 30 square centimeter

The three sides of a right triangle are 5cm, 12cm and 13cm respectively. Rotate a circle along a straight edge of the right triangle to get a cone, and then request this geometry The bottom area of the body, draw a picture!

You don't have to draw this,
We should be able to see it directly. There are two situations
(1) Rotate on the right angle side of 5cm
The bottom is a circle with a radius of 12 cm
The area is π * 12? 2 = 144 π cm? 2
(2) Rotate with the right angle side of 12cm as the axis
Then the bottom is a circle with a radius of 5cm
The area is π * 5? = 25 π cm