P.6 Revision of circumference

• Yes

• No

• Yes

• No

Look at the picture. Point O is the centre of the circle. AB is the _______ of the circle.

• centre

• circumference

• radius

• diameter

Look at the picture. Point O is the centre of the circle. OC is the _______ of the circle.

• centre

• circumference

• radius

• diameter

Diameter = _________________

Circumference = _____________

Look at the picture. The circumference of the circle is ______ cm.

• 132

• 1078

• 176

• 154

Look at the picture. The circumference of the circle is _______m.

• 3

• 4.71

• 9.42

• 7.065

• 31.4

• 10

• 15.7

• 25.7

The perimeter of the figure is _____ cm. (The black dot is the centre of the original circle.)

• 141

• 99

• 120

• 66