if a wire is bent into the shape of a square the area of the square is 49 CM square then the wire is bent into semi circle shape find the radius of semicircle take pi 22/7
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hey mate!!
here is your answer:
area of square=area of semicircle
so, 49cm^2=1/2×22/7×r×r
49×7×2/22=r×r
r^2=49×7/11
r^2=343/11
r=root 343/11
hope it helped:)
radius =
here is your answer:
area of square=area of semicircle
so, 49cm^2=1/2×22/7×r×r
49×7×2/22=r×r
r^2=49×7/11
r^2=343/11
r=root 343/11
hope it helped:)
radius =
tarun533:
its wrong because in my book its answer is 5whole 4by9
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