Question

Rectangle has a width of 14 cm in a diagonal 20 cm what’s the length of the rectangle

Answer 1

32

Explanation:

Refer to the attachment below:

The diagonal splits the rectangle into 2 triangles, the red and yellow triangle.

Since this is a rectangle, we know that the triangles are right triangles.

Knowing this we can use Pythagorean theorem. X^2+14^2=20^2

X=2

Add to find the perimeter:

2+14+14+2 = 32