Terra Nova Practice Terra Nova Practice Lesson 15Lesson 15

Perimeter and AreaPerimeter and Area

Problem 1Problem 1

If the perimeter of equilateral If the perimeter of equilateral triangle ABC is 39 cm, what is triangle ABC is 39 cm, what is the length of side BC?the length of side BC?

A 13 cmA 13 cm

B 19.5 cmB 19.5 cm

C 39 cmC 39 cm

D Can’t be determined D Can’t be determined

Problem 2Problem 2What is the perimeter of this figure?What is the perimeter of this figure?

A 30 cmA 30 cm C 100 cmC 100 cm

B 60 cmB 60 cm D 120 cmD 120 cm

Problem 3Problem 3If the circumference of circle C is 66 feet, If the circumference of circle C is 66 feet, what is the diameter of the circle?what is the diameter of the circle?

A 66 feetA 66 feet C 21 feetC 21 feet

B 33 feetB 33 feet D 14 feetD 14 feet

Problem 4Problem 4

Find the area of this figure.Find the area of this figure.

A 160 ft.A 160 ft.22 C 80 ft.C 80 ft.22

B 100 ft.B 100 ft.22 D 40 ft.D 40 ft.22

Problem 5Problem 5

Find the area of this figure.Find the area of this figure.

A 28 yds.A 28 yds.22 C 45 yds.C 45 yds.22

B 42 yds.B 42 yds.22 D 49 yds.D 49 yds.22

Problem 6Problem 6

Mona wants to put a fence around her Mona wants to put a fence around her square flower garden. If the area of square flower garden. If the area of the flower garden is 64 sq. m, how the flower garden is 64 sq. m, how many meters of fencing will she need?many meters of fencing will she need?

A 64 mA 64 m

B 32 mB 32 m

C 16 mC 16 m

D 8 mD 8 m

Problem 7Problem 7

Find the perimeter of this hexagon.Find the perimeter of this hexagon.

A 60 cmA 60 cm C 42 cmC 42 cm

B 56 cmB 56 cm D 40 cmD 40 cm

Problem 8Problem 8

What is the area of What is the area of ∆PQR?∆PQR?

A 160 ft.A 160 ft.22 C 75 ft.C 75 ft.22

B 100 ft.B 100 ft.22 D 40 ft.D 40 ft.22

Problem 9Problem 9

The perimeter of a square mirror is The perimeter of a square mirror is 40 cm. What is the area of the 40 cm. What is the area of the mirror?mirror?

A 100 cmA 100 cm22

B 160 cmB 160 cm22

C 200 cmC 200 cm22

D 400 cmD 400 cm22

Problem 10Problem 10What is the area of the shaded region?What is the area of the shaded region?

A 15 sq. unitsA 15 sq. units C 18 sq. unitsC 18 sq. units

B 17 sq. unitsB 17 sq. units D 36 sq. unitsD 36 sq. units

Problem 11Problem 11

Find the area of Find the area of ∆XYZ.∆XYZ.

A 20 ft.A 20 ft.22 C 12 ft.C 12 ft.22

B 15 ft.B 15 ft.22 D 6 ft.D 6 ft.22

AnswersAnswers

1 A1 A 7 C7 C

2 B2 B 8 C8 C

3 C3 C 9 A9 A

4 C4 C 10 C10 C

5 D5 D 11 D11 D

6 B6 B