luas bangun diatas adalah...
a. 77 cm2
b. 135 cm2
c. 154 cm2
d. 172 cm2
plis kk besok dikumpul
a. 77 cm2
b. 135 cm2
c. 154 cm2
d. 172 cm2
plis kk besok dikumpul
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Jawaban:
gambarnya 1/4 lingkaran
L = 1/4 x π × r × r
= 1/4 x 22/7 x 14 x 14
= 1/4 x 616
= 154 cm^2 (C)