 Discover the formula for finding the area of a circle in this quiz.

# Perimeter and Area (Easy)

The perimeter is the sum of the lengths of the sides that enclose a 2D shape, e.g. the sum of the four sides of a square make up the perimeter of the square. The area of a closed 2D shape is the space enclosed by the perimeter of the shape.

The following symbols may be of use in doing this quiz:

• millimetre (mm); centimetre (cm); metre (m)
• square millimetre (mm2); square centimetre (cm2); square metre (m2)

Do this 11-plus Maths quiz and revise a few simple ideas about perimeter and area. When you are comfortable with these easy quizzes, move onto our next two sets - medium and difficult - on the same subject.

Good luck!

1.
A square has a side length of 6 cm. If the square is cut along one of its diagonals, what will be the area of one of the resulting triangles?
36 cm2
18 cm
18 cm2
72 cm2
The sides which form the right angle are both of length 6 cm ∴ area = 12 × base × height = 12 × 6 × 6 = 18 cm2
2.
How many square millimetres are there in 1 cm2?
10
10,000
1,000
100
1 cm2 = 1 cm × 1 cm = 1 cm2. 1 cm equals 10 mm BUT 1 cm2 = 10 mm × 10 mm = 100 mm2
3.
If you are provided with a ruler, what would be the best way to find the area of a rectangle?
Measure the length and width and multiply each of them by two. Finally, add these results together
Measure the lengths of the length and the width and add them together
Measure the lengths of the length and the width and multiply them together
Measure the length of one side and multiply it with itself
The area of a rectangle = length × width
4.
How many square centimetres are there in 1 m2?
1,000
100
10,000
10
1 square metre = 1 m × 1 m = 1 m2. 1 m equals 100 cm BUT 1 m2 = 100 cm × 100 cm = 10,000 cm2
5.
If you are provided with a ruler, what would be the best way to find the area of a right angled triangle?
Measure the lengths of the sides that form the right angle and multiply this by two
Measure the lengths of the sides that form the right angle, multiply them and divide this by two
Measure the lengths of the hypotenuse and multiply this by two
Measure the length of one of the sides that forms the right angle, and the length of the hypotenuse. Multiply these together and then divide by two
Area of a triangle = 12 × base × height
6.
If you are provided with a ruler, what would be the best way to find the area of a square?
Measure the length of one side and multiply it with itself
Measure the length of two sides and multiply them together
Measure the length of one side and multiply it with four
Measure the length of one side and multiply it with two
The area of a square = length × width BUT length = width in a square
7.
What is the formula for finding the area of a circle?
Area = 2 × π × r
Area = π × r2
Area = π × r3
Area = π × r
Learn this fact! π = 227 or about 3.14
8.
A right angled triangle has an area of 45 cm2. What is the area of the rectangle formed by using two such triangles?
90 cm
90 cm2
180 cm2
180 cm
Double the area of the given triangle: two right angled triangles form a square or a rectangle
9.
What is the perimeter of a circle called?
Circularize
Circumscribe
Circumference
Circumflex
Learn this fact!
10.
What is the perimeter of a rectangle of width 10 cm and length 14 cm?
140 cm
48 cm2
140 cm2
48 cm
Perimeter of a rectangle = 2 × length + 2 × width = 2 × 14 + 2 × 10 = 28 + 20 = 48 cm
Author:  Frank Evans