Square Roots and Order of Operations

Justin is working at his desk that is in a shape of a square? The area is 169 in². What is the side length of a desk?

• 14 in

• 13 in

• 11 in

• 15 in

If I know the area of a square, how do I find the side length?

• I square the area.

• I divide the area by 2.

• I take the square root of the area.

• I divide the area by 4.

Lexi is hanging lights around a square window with an area of 49 ft². What is the total distance around the window?

• 28 feet

• 7 feet

• 25 feet

• 24.5 feet

What is the side length of a square that has an area of 40 in²?

• 20 in

• 10 in

• 1600 in

• 6.3 in

2√5 + 4√5 =

• 6√10

• 8√10

• 8√5

• 6√5

What is the value of √8?

• 2.82842712475

• 3.82842712475

• 4.82842712475

• 5.82842712475

Find the value[s] of the expression.

• 5

• 4

• -5

• No real solutions

• A
• B
• C
• D

What is the square root of √36?

• 6

• 9

• 4

• 12

• A
• B
• C
• D