find the radius of a sphere whose surface area is 154 cm square
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Answered by
13
S. A. of sphere = 154 sq. cm.
4πr^2 =154
4x22/7xr^2= 154
r^2=154x1/4x7/22
r^2=12.25
r =√12.25
r=3.5
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4πr^2 =154
4x22/7xr^2= 154
r^2=154x1/4x7/22
r^2=12.25
r =√12.25
r=3.5
hope it hlps u
mark as brainalest
kriyanshi1:
thanxxx
ok ill mark it
tq
Answered by
6
Hello,
let r be the radius of the sphere.
Surface Area= 4πr² ;
154=4πr²;
154=4×22/7×r²;
154×7/22×4=r²;
r²=12.25;
r=√12.25=3.5;
r=3.5
thus, the radius of the sphere is 3.5 cm
bye :-)
let r be the radius of the sphere.
Surface Area= 4πr² ;
154=4πr²;
154=4×22/7×r²;
154×7/22×4=r²;
r²=12.25;
r=√12.25=3.5;
r=3.5
thus, the radius of the sphere is 3.5 cm
bye :-)
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