Square Roots, Pythagorean Theorem, Nets, Percents

Which of these numbers is not a perfect square?

• 121

• 2

• 100

• 4

Which of these numbers is a square number?

• 14

• 49

• 98

• 56

What is the side length of a square with area 25 cm²?

• 5 cm

• 12.5 cm

• 6.25 cm

• 20 cm

Which 2 consecutive square numbers is 54 between?

• 53 and 55

• 28 and 32

• 49 and 64

• 12 and 16

Find the sum of 4² + 9².

• 52

• 169

• 97

• 72

Find √(25 × 25).

• 25

• 5

• 625

• 156.25

Between which 2 consecutive whole numbers is √111?

• 27 and 28

• 110 and 112

• 100 and 121

• 10 and 11

Find the approximate side length of a square with area 27 cm². Give your answer to 1 decimal place.

• 13.5 cm

• 6.8 cm

• 5.2 cm

• 3.7 cm

Find the length of the hypotenuse.

• 9 m

• 10 m

• 11 m

• 12 m

Find the length of the leg labelled r.

• 39 m

• 38 m

• 12 m

• 24 m