The area of a semi circle is 27.72
sq.cm, then its radius is
a. 4.1 cm
b. 4.2 cm
c. 5.2 cm
d.5.6 cm
Answers
Answered by
2
Answer:
this is a circular form ok bye
Answered by
2
Answer:
(2)4.2 cm
Step-by-step explanation:
Area of semicircle is
1/2*π*r^2
so, in second one 1/2*22/7*4.2*4.2
=27.72
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