(3+3+4)
a. A wire is in the form of a semi-circle of radius 28cm. It is straightened and bent into the form of
a square. What is the length of the side of the square?
b. Factorise: 1-1- (1 - 1)2 + 4 - 47
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Answer:
Answer
Given : Radius of circle=28
Circumference of circle =2πr
Circumference of circle =2π(28)=176
Side of the square =
4
176
=44 cm
Hence option
′
A
′
is the answer
Step-by-step explanation:
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