Question

A square has sides of length x +2cm.
A right-angled isosceles triangle has its two equal sides of length 2x + 1 cm.
The area of the square is equal to the area of the triangle.
By writing and solving a quadratic equation, find the perimeter of the square to 3 significant
figures.

Answer 1

Step-by-step explanation:

In an isosceles right triangle, the two equal sides have a right angle between them. This means you can use one equal side as the base, and the other as the height. If these sides have length s, then the area is (1/2)s^2.

Answer 2

Step-by-step explanation:

p=4a

p=4×2x+1

p=8x

p=4a

p=4×x+2

p=4x+2

p=6x

hope you understand