Grade 6 - Maths - Circle 2

Which one of these lines is a diameter?

• OA

• OB

• AC

• AB

Which one of the following statements is not true?

• The centre of a circle is where 2 radii meet

• The radius of a circle is half the diameter of a circle

• The diameter of a circle is half the radius of a circle

• The diameter of a ciecle divides the circle into 2 equal parts

Find the circumference of a tyre if its diameter is 50cm. (π = 3,14)

The figure is made up of 3 identical quarter circle of radii 10cm. Find the area of the figure. (π = 3,14)

The figure is made up of 4 identical quadrants of radii 5cm. Find its perimeter in terms of π

• 10π cm

• (10π + 10) cm

• (20 π + 10) cm

• (40 π + 10) cm

Find the area of a round coin of radius 3cm (π = 3,14)