©MathsWatch
Clip 117
Area of a Circle
Grade 3 questions
1)
Find the areas of the following shapes.
a)
b)
3cm
2)
c)
7m
8cm
Work out the areas of the following shapes.
a)
b)
12 mm
10cm
3)
The radius of the top of a circular table is 60 cm.
The table also has a circular base with diameter 30 cm.
a) Work out the area of the top of the table.
b) Work out the area of the base of the table.
4)
The diagram shows a shape, made from a semi-circle and a rectangle.
The diameter of the semi-circle is 13 cm.
The length of the rectangle is 17 cm.
Calculate the area of the shape.
Give your answer correct to
3 significant figures.
13 cm
17 cm
Page 117
©MathsWatch
Clip 117
Area of a Circle
Grade 3 answers
1)
Find the areas of the following shapes.
a)
b)
3cm
28.278 cm2
2)
c)
7m
8cm
153.958 m2
50.272 cm2
Work out the areas of the following shapes.
a)
b)
12 mm
10cm
78.55 cm2
56.556 mm2
3)
The radius of the top of a circular table is 60 cm.
The table also has a circular base with diameter 30 cm.
a) Work out the area of the top of the table. 11311.2 cm2
b) Work out the area of the base of the table. 706.95 cm2
4)
The diagram shows a shape, made from a semi-circle and a rectangle.
The diameter of the semi-circle is 13 cm.
The length of the rectangle is 17 cm.
Calculate the area of the shape.
Give your answer correct to
3 significant figures. 287 cm2
13 cm
17 cm
Page 117