Area and perimeter of semicircles and quarter circles
7th grade (Year 8 in England) · 16 questions · Common Core: 7.G.B.4 · England: KS3 Geometry and measures, GCSE Foundation Geometry and measures
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Question 1
Find the area of a semicircle with radius 8 cm, to 1 decimal place.
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Question 2
A semicircle has diameter 6 cm. Find its perimeter (curved part + straight edge), to 1 decimal place.
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Question 3
A window is a 8 dm by 6 dm rectangle with a semicircle on top (the semicircle's diameter is the 8 dm side). Find the total area of glass in dm², to 1 decimal place.
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Question 4
Find the area of a semicircle with radius 14 cm, to 1 decimal place.
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Question 5
A semicircle has diameter 14 cm. Find its perimeter (curved part + straight edge), to 1 decimal place.
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Question 6
A window is a 12 dm by 9 dm rectangle with a semicircle on top (the semicircle's diameter is the 12 dm side). Find the total area of glass in dm², to 1 decimal place.
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Question 7
Find the area of a semicircle with radius 12 cm, to 1 decimal place.
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Question 8
A semicircle has diameter 22 cm. Find its perimeter (curved part + straight edge), to 1 decimal place.
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Question 9
A window is a 12 dm by 7 dm rectangle with a semicircle on top (the semicircle's diameter is the 12 dm side). Find the total area of glass in dm², to 1 decimal place.
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Question 10
Find the area of a semicircle with radius 6 cm, to 1 decimal place.
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Question 11
A semicircle has diameter 8 cm. Find its perimeter (curved part + straight edge), to 1 decimal place.
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Question 12
A window is a 4 dm by 6 dm rectangle with a semicircle on top (the semicircle's diameter is the 4 dm side). Find the total area of glass in dm², to 1 decimal place.
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Question 13
Find the area of a semicircle with radius 12 cm, to 1 decimal place.
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Question 14
A semicircle has diameter 22 cm. Find its perimeter (curved part + straight edge), to 1 decimal place.
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Question 15
A window is a 12 dm by 4 dm rectangle with a semicircle on top (the semicircle's diameter is the 12 dm side). Find the total area of glass in dm², to 1 decimal place.
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Question 16
Find the area of a semicircle with radius 11 cm, to 1 decimal place.
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