P5 Math 2nd term Revision

The perimeter of the circle is called ____________.

• radius

• diameter

• circumference

• centre

A line segment passing through the centre of a circle with both ends lying on the circle is called a ___________ of the circle.

• radius

• diameter

• circumference

• centre

a. Point ​ (a)   is the centre of the circle.

b. The length of OA is equal to the length of ​ (b)   ,​ (c)   .

Line segment ​ (d)   is the longest.

• O
• OB
• OC
• AB
• AC
• AOB

In the figure, Points P, Q and R are the centres of the circles. The radii of the three circles are 5 cm, 4 cm and 3 cm respectively. The perimeter of triangle PQR is _______ cm.

Point O is the centre of the blue circle and the orange circle.

The radius of the blue circle is _______ cm.

Point O is the centre of the blue circle and the orange circle.

The diameter of the orange circle is _______ cm.

Cut the 3-D shape along the dotted line. What is the shape of the cross section?

Cut the 3-D shape along the dotted line. What shape is the cross section?

In (a), there are ​ (a)   edges and ​ (b)   vertices.

In (b), there are ​ (c)   edges and ​ (d)   vertices.

• 12
• 7
• 9
• 6
• 5
• 8
• 11

Cut the 3-D shape at the dotted line. Which one will give the cross section of a pentagon?

• A

• B

• C

• D