1. Find the diameter of the circle whose circumference
(i) 11 cm
(ii) 66 cm
(iii) 74 cm
(iv) 132 cm
2. Find the area of the circle whose diameter is:
(i) 14 cm
(ii) 56 cm
(iii) 63 dm
(iv) 84 dm
Answers
Answered by
1
Answer:
C = 11 then d= 3.5
C =66 then d = 21.01
C = 74 then d = 23.55
C =132 then d = 42.02
Answered by
3
Answer:
1.i.let the radius be r
Therefore,
2πr=Circumference
=>2×(22/7)×r=11
=>r=(11×7)/(22×2)
=>r=1.75 cm
diameter=1.75×2
=3.5cm
2.i. Diameter=14cm
Radius=14/2
=7cm
Area=πr²
=(22/7)×7×7
=154cm²
Rest do by yourself...
Hope it is clear...
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