Pythagorean theorem] if the length of the hypotenuse of an isosceles right triangle is 4, then the perimeter of the right triangle is 4 It's a process

Pythagorean theorem] if the length of the hypotenuse of an isosceles right triangle is 4, then the perimeter of the right triangle is 4 It's a process

Let the right angle side length be x, then the other right angle side length is also X. according to the Gougu theorem, x + x = 4, that is, x = 8, so x = 2 √ 2, that is to say, the right angle side length is 2 √ 2, so the perimeter is 2 √ 2 + 2 √ 2 + 4 = 4 √ 2 + 4

One side of a triangular lawn is 20 m long. On the drawing of this lawn, this side is 5 cm long, and the other sides are 3.5 cm long
Find the actual length of the other two sides?

14m

Reduce the length of a triangle lawn by 100 times and draw it on the drawing. The height of 7.5cm is 5.4cm. What is the actual area of this lawn
How many square meters

The actual length is 7.5m and the height is 5.4m,
So: the actual area of lawn is (1 / 2) * 7.5 * 5.4 = 20.25 (M2)