**12.**While shopping online, Ji Hun finds a square rug with the area of 11 m squared.

He needs to know if it will fit his 4 m x 5 m bedroom.

**A)**Estimate the side length of the rug, to one decimal place.

**B)**Check your estimate with a calculator.

√11= 3.316

**C)**Will the rug fit? Explain.

Yes, because the area of the room is 20 m2

**14**

**.**Alex is thinking of a number.

"The number has a square root between 7 and 8, and it is a multiple of 12."

**A)**What number could he be thinking of?

7.8

**B)**Is there more than one answer? Explain

No, because there are no more multiples of 12 in between

**√49**and**√64**

**17**

**.**Carmel wants to mount an 18 cm x 18 cm square picture on a square

board that is four times the area of the picture.

**A)**What is the area of the picture?

Multiply 18cm x 18cm = 324 cm2

324 cm2 is the area of the picture

**B)**What is the are of the board?

Multiply 324 cm2 x 4 = 1296

The area of the board is 1296 cm2. It is 4x the area of the picture

**C)**What is the dimensions of the board?

Find the square of 1296 cm2

The square root 1296 cm2 is 36 cm

The square root 1296 cm2 is 36 cm

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