KS2 Maths Quiz
The surface area of a cube (such as a dice) with sides of 5cm is 150cm2.

# Perimeter and Area (Year 6)

In KS2 Maths children will come to understand perimeter and area. In Year Six children should know how to work out the perimeter of any regular shape, such as a square, triangle, rectangle, pentagon etc. They should also be confident when calculating the area of a square, a right angled triangle, a rectangle or an L-shape and in converting between mm2, cm2 and m2. They will now be exposed to three-dimensional, or 3D shapes, and shown how to calculate their area.

Area is the size of the surface of a two-dimensional (2D) or three-dimensional (3D) shape. The area of a three-dimensional shape is worked out by adding the area of each of its faces together. The area of each of its faces is worked out in the same way as the area of 2D shapes. This Perimeter and Area quiz is all about the perimeter and area of 2D shapes and the surface area of 3D shapes.

Take this quiz for 10-11 year olds to discover what you know about area and perimeter.

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1. A regular heptagon has a perimeter of 63cm. What length is each side?
A regular heptagon has 7 equal sides. To find the length of each side divide the perimeter by 7
2. What is the formula for calculating the area of a rectangle?
A rectangle measuring 60cm by 45cm would have an area of 2,700cm2
3. What is the perimeter of a regular decagon with sides of 23cm?
A regular decagon has 10 equal sides, so we multiply the length of the side by 10 to calculate the perimeter
4. What is the perimeter of a regular octagon with sides of 12cm?
Octagons have 8 sides so 12 x 8 = 96
5. 1cm2 is equivalent to how many mm2?
There are 10mm in a cm so 10 x 10 = 100
6. What is the surface area of a cuboid with measurements of 4cm x 5cm x 6cm?
2 of the faces will be 4cm x 5cm = 20cm2
2 of the faces will be 4cm x 6cm = 24cm2
2 of the faces will be 5cm x 6cm = 30 cm2
20 + 20 + 24 + 24 + 30 + 30 = 148
7. How would you find the area of an L-shape?
Always simplify shapes if you can
8. What is the area of a right angle triangle with width 12cm and length 6cm?
12 x 6 = 72
72 ÷ 2 = 36
9. How do we calculate the area of a right angled triangle?
Right angled triangles are rectangles cut in half so the formula is the same as for a rectangle but then halved
10. What is the surface area of a cube with sides of 5cm?
The area of each face is 25cm2. There are 6 faces, so multiply 25cm2 by 6 to give 150cm2

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