Solve the problem.
-The radius of a spherical balloon is found usingdius of a spherical balloon is found using r $r = \sqrt { \frac { S } { 4 \pi } }$ where S i where S s the surface area of the balloon. Approximate the radius of a balloon whose surface area is 18 square inches. (Round to the nearest hundredth.)
A)0.28 in.
B)2.39 in.
C)1.20 in.
D)2.12 in.

Question

Quizplus · Accepted Answer

To find the radius, substitute S = 18 into the formula: $ r = \sqrt{\frac{18}{4\pi}} $. Calculating this gives approximately 1.20 inches.

Solve the Problem r=S4πr = \sqrt { \frac { S } { 4 \pi } }r=4πS​​

Solve the Problem $r = \sqrt { \frac { S } { 4 \pi } }$