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1329587
Area and Circumference of a Circle Quiz
Quiz by
Oliver Balay
, updated more than 1 year ago
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Created by
Oliver Balay
about 5 years ago
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Description
Area and Circumference of a Circle Questions OB
No tags specified
area of a circle
circumference
electrical science
electrical installations
radius
diameter
Resource summary
Question 1
Question
The diameter of a circle is the distance from the centre of the circle to any point on the circle?
Answer
True
False
Question 2
Question
Units of area are always written as squares for e.g. mm 2, cm 2, m 2 e.t.c.
Answer
True
False
Question 3
Question
Find the area of a circle with a diameter of 20 cm. Give the answer correct to 1 decimal point (DP).
Diameter_20cm.gif
Answer
A = 341.2 cm 2
A = 314.2 cm 2
A = 342 cm
A = 100c m 2
Question 4
Question
Find the area of a circle with a radius of 12 cm. Give your answer correct to 3 significant figures (SF).
Radius_12cm.gif
Answer
A = 452 cm 2
A = 453 cm 2
A = 452 cm
A = 453 cm
Question 5
Question
Find the area of a circle with a diameter of 12 m. Give the answer correct to 1 decimal place (DP).
Diameter.png
Answer
A = 36.1 m 2
A = 36 m
A = 113.0 m 2
A = 113.1 m 2
Question 6
Question
Find the area of a circle with a radius of 50 mm. Give your answer correct to 4 significant figures (SF).
Radius.gif
Answer
A = 7853 mm 2
A = 7854 mm 2
A = 2500 mm 2
A =2500 mm
Question 7
Question
To find the area of a semi-circle you can use the following formula: 1/2 x π x r 2
Semi_circle.jpg
Answer
True
False
Question 8
Question
Find the circumference of a wheel with a diameter of 50 cm. Give your answer correct to 4 significant figures (SF).
Circumference_of_Circle.png
Answer
C = 175cm
C = 150cm
C = 157 cm 2
C = 157 cm
Question 9
Question
A plate has a radius of 15 cm. Find the circumference of the plate and give your answer correct to 1 decimal place (dp)
Plate.jpg
Answer
C = 94.1 cm
C = 49.2 cm
C = 94.2 cm
C = 94.2 m
Question 10
Question
A wheel has a radius of 300 mm. Find the circumference of the wheel and give your answer correct (to 4 SF)
Wheelchair__paralympics.jpg
Answer
C = 1488 mm
C = 1884 mm
C = 1885 mm
C = 600 mm
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