Question

Can someone help me with a and b thank you

Answer 1

Given:

a) Area = 121 ft²

b) Area = 81 yd²

To find:

The side length of each square

Solution:

a) Area = 121 ft²

Area of the square = s²

⇒ s² = 121

Taking square root on both sides.

$\Rightarrow \sqrt{s^2} = \sqrt{ 121}$

$\Rightarrow \sqrt{s^2} = \sqrt{ 11^2}$

Square root and squares get canceled.

⇒ s = 11

The length of each side of the square is 11 ft.

b) Area = 81 yd²

Area of the square = s²

⇒ s² = 81

Taking square root on both sides.

$\Rightarrow \sqrt{s^2} = \sqrt{ 81}$

$\Rightarrow \sqrt{s^2} = \sqrt{ 9^2}$

Square root and squares get canceled.

⇒ s = 9

The length of each side of the square is 9 yd.