find the radius of a sphere whose surface area is 154 cm square
Answers
Answered by
1
Answer:
r = 3.5cm
Step-by-step explanation:
surface area = 4π r²
=> 154 = 4 ×22/7 × r²
=> r² = 154 × 7 ÷ (88)
=> r² = 12.25cm²
=> r = √12.25
=> r = 3.5cm
Answered by
0
Answer:
radius is 7/2 cm
Step-by-step explanation:
surface area of sphere = 4πr^2
154=4*22/7*r^2
r=7/2cm
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