tolong dong no.74 nya

Please, let me answer your question :) ___________________________

KLB= 132 cm
KLK= 22 cm
Ditanya= L (Arsir)?

KLB= πd
132= 22/7 x d
d= 132/22/7
d= 132 x 7/22
d= 6 x 7
d= 42 > r= 21 cm

KLK= πd
22= 22/7 x d
d= 22/7/22
d= 22 x 7/22
d= 1 x 7
d= 7 cm

LKB= πr²
LKB= 22/7 x 21 x 21
LKB= 22 x 3 x 21
LKB= 66 x 21
LKB= 1386 cm²

LKL= ¼ πd²
LKL= ¼ x 22/7 x 7 x 7
LKL= ¼ x 22 x 7
LKL= 22 x 1,75
LKL= 38,5 cm²

L arsir= 1386-38,5= 1347,5 cm²

Yg B jawabannya.

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Hopefully this is the best for you :)