Polygons, circles and discs

Circles

Types of exercises: radius and diameter, circle inscribed in a square, radius, diameter and chord in a drawing, which point makes a diameter.

Exercises are drawn at random from a large bank - every click gives a different set.

Solved: 0 of 10

1

Problem

Points A, B, C, D and E lie on a circle with centre O. Which point should be joined to A to make a diameter of the circle?

A circle with centre O and points on itOABCDE
2

Problem

Around a circle of radius 24 cm, a square is drawn whose sides all touch the circle. How many centimetres is the side of the square?

3

Problem

The drawing shows a circle with centre O. Which of the segments is a diameter of the circle?

A circle with centre O and segmentsOABCDE
4

Problem

A circle has radius 22 cm. How many centimetres is its diameter?

5

Problem

Points A, B, C, D and E lie on a circle with centre O. Which point should be joined to A to make a diameter of the circle?

A circle with centre O and points on itOABCDE
6

Problem

A circle touching all four sides is drawn inside a square of side 10 cm. How many centimetres is its radius?

7

Problem

The drawing shows a circle with centre O. Which of the segments is a radius of the circle?

A circle with centre O and segmentsOABCDE
8

Problem

A circle has diameter 18 cm. How many centimetres is its radius?

9

Problem

Points A, B, C, D and E lie on a circle with centre O. Which point should be joined to A to make a diameter of the circle?

A circle with centre O and points on itOABCDE
10

Problem

A circle touching all four sides is drawn inside a square of side 42 cm. How many centimetres is its radius?

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Circles - exercises with solutions (Polygons, circles and discs) | PhiBoard