1 sampai 4 beserta langkah-langkah nya
Jawab:
no 1. L = [tex]\pi[/tex] x r x ( s + r )
= 3,14 x 10 x ( 10 + 24)
= 31,4 x 34
= 1067,6 cm²
no 2. L = [tex]\pi[/tex] x r x ( s + r )
= 22/7 x 14 x ( 20 + 14)
= 22 x 2 x ( 34)
= 44 x 34
= 1.496 cm²
no 3.
d = 35/2
= 17,5 cm
L = [tex]\pi[/tex] x r x ( s + r )
= 3,14 x 17,5 x ( 30 + 17,5 )
= 54,95 x 47,5
= 102,45 cm²
no 4. d = 20/2
r = 10 cm
L = [tex]\pi[/tex] x r x ( s + r )
= 3,14 x 10 x ( 28 + 10 )
= 31,4 x 38
= 2610,125 cm²
Semoga membantu
#koreksi
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