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Back to Exercise: Perimeter and Area of Plane Figures

Exercises: Perimeter and Area of Plane Figures

Work through each section in order. Show your working, and always write the correct unit (cm or cm²) with your answer.

Grade 7·21 problems·~28 min·Uganda NCDC Primary 7 Mathematics·lesson·measurement-01
Work through problems with immediate feedback
A

Recall / Warm-Up

These problems review skills you already know.

1

A rectangle has a right angle at each corner. Which pair of sides are always equal in length?

2

Which unit would you use to report the amount of grass needed to cover a rectangular lawn?

Triangle with three sides labeled 9, 12, and 15
3

A triangle has three sides of the given lengths. Look at the labeled triangle below and find its perimeter.

B

Fluency Practice

1

Find the perimeter of a rectangle 7 cm long and 4 cm wide.

Triangle with sides labeled 6, 8, and 10
2

Find the perimeter of the triangle shown, whose three sides are labeled.

3

A rectangle measures 5 cm by 4 cm. What is its area?

4

A triangle has a base of 9 cm and a perpendicular height of 4 cm. Find its area.

5

A parallelogram has a base of 10 cm and a perpendicular height of 6 cm. Find its area.

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