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Maths I

Measure and Shape

Area and circumference of a circle - Test

1.

Work out the circumference of this circle. Give the answer to 1 decimal place.

A circle with a 10 centimetre diameter.

2.

Work out the circumference of this circle. Give the answer to 2 d.p.

A circle with a 2 centimetre radius.

3.

Work out the area of this circle. Give the answer to 2 d.p.

A circle with a 4 centimetre radius.

4.

Work out the area of this circle. Give the answer to 2 d.p.

A circle with an 18 centimetre diameter.

5.

Work out the perimeter of this semicircle. Give the answer to 2 d.p.

A semicircle with a 12 centimetre diameter.

6.

Work out the area of this semicircle. Give the answer to 4 d.p.

A semicircle with a 1.4 metre diameter.

7.

Work out the area of this shape. Give the answer to 2 d.p.

A rectangle, of length 15 metres and width 12 metres, with a semicircle joined on one width edge by its straight edge.

8.

Work out the perimeter of this shape. Give the answer to 2 d.p.

A rectangle, with a length of 12 centimetres and width of 2 centimetres, with a semicircle joined onto one of the length edges by its straight edge.

9.

Helen's kitchen window is in the shape of a rectangle with a semicircle at the top. What is the total area of the window? Give the answer to 4 d.p.

A rectangle with a semi-circle joined on to one of the width edges of the rectangle, by it's straight edge. The rectangle's length is 1.8 metres, and its width is 1.2 metres.

10.

A running track is marked as shown.

A running track shape, composed of two semicircles joined onto the width edges of a rectangle. The rectangle is 100 metres in length and 62 metres in width.

The straight part of the track is 100m long and the width across the track is 62m. The ends of the track are semicircular.

Calculate the perimeter of the inside of the track. Give the answer to 2 d.p.