WorksheetsAC 8.1 Quiz
Total questions: 10
Worksheet time: 5mins
Which of the following is an/are equivalent(s) for Pi?
(A) 3.14
(B) 3.14923...
(C) 22/7
(D) A and C
The formula for radius is...
C = 2πr
R = 2d
R = d/2
C = πd
The formula for diameter is...
C = πd
D = 2r
R = 2d
D = 2π
The formula for circumference when given the radius is...
R = d/2
R = 2d
C = πr2
C = 2πr
The formula for circumference when given the diameter is...
C = πd
C = 2πd
C = 2πr
D = πr
The formula for perimeter of a semi-circle is...
PS = d + r
PS = πr + r
PS = C/2 + d
PS = 3.14r
The formula for perimeter of a semi-circle can be simplified as...
(A) PS = 9.57r
(B) PS = 3.14d
(C) PS = 5.14r
(D) A and B
If the radius of a circle is 3m, what is the diameter?
1.5m
9.42m
18.84m
6m
If the diameter of a circle is 10 m, what is the radius?
5 m
31.4 m
2.5 m
15.7 m
A circle's radius is 5 in. What is the circumference?
15.7 in.
10 in.
31.4 in.
2.5 in.
