Compound Perimeter
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Lesson details
Key learning points
- In this lesson, we will calculate the perimeter of shapes involving fractions of circles.
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6 Questions
Q1.
If the diameter of a circle is 20. What is the circumference?
10 pi
100 pi
Q2.
If the circumference of a circle is 14 pi. What is the radius?
14
28
Q3.
What is the arc length for a?
15.7
1800
5 pi
Q4.
What is the arc length for b?
20
20 pi
5
Q5.
What is the arc length for c?
15
7.5
Q6.
What is the arc length for d?
2
4
5 Questions
Q1.
Pi is approximately...
1.41
2.71
4.59
Q2.
If a circle has radius 5, then the circumference is approximately...
15.7
16.2
27.1
Q3.
Find the perimeter of a.
15+2.5pi
15+5pi
20+5pi
Q4.
Find the perimeter of b.
36+20pi
36+5pi
56 + 20pi
56+10pi
Q5.
Find the perimeter of c.
36pi + 48
72pi + 24
72pi + 48