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r=7cm
s=30cm
A.Ls=π×r×s
=22/7×7×30
=660cm²
B. La=π×r²
=22/7×7²
=154cm²
c.t=√s²-r²
=√30²-7²
=√900-49
=√851
=29,17cm
D. Lp=π×(r+s)
=22/7×7(30+7)
=814cm²
smgga bermanfaat :)
= 22/7 x 7 x 30=660
b.
= 22/7 x 7 x 7= 154
c. t= akar 30 - akar 7= akar 900-49= akar 851 = 29,17
d.
, atau
= 22/7 x 7 (7 +30)
=22 x 37 = 814