Math, asked by dora66, 1 year ago

Question no. 13,14,15,and 16

Attachments:

ishitakaul: q no. 13 r = 7
ishitakaul: q15 part b by using the identity a3 + b3 + c 3 = 3abc

Answers

Answered by tanisha531
0
suface area of sphere =154cm2
4πr2=154cm
4*22/7r2=154*7/22*4
r2=49/4
r=✓49/4
r=7/2
when we remove square other equation carry root

dora66: can u solve the rest of them please
Answered by Anonymous
0

13. 4πr²= 154cm²

r²=154/ 4 x 22/7

r²=154 x 7 / 4 x 22=49/4

r=√49/4

r=7/2

r=3.5 cm





dora66: can u solve the rest of them please
Anonymous: I can try >-
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