Jawab:
a) keliling = 88 cm
b) luas = 616 cm²
Penjelasan dengan langkah-langkah:
a) keliling
= 2 x π x r
= 2 x [tex]\frac{22}{7}[/tex] x 14
= 2 x 22 x (14 : 7)
= 2 x 22 x 2
= 44 x 2
= 88 cm
b) luas
= π x r x r
= [tex]\frac{22}{7}[/tex] x 14 x 14
= 22 x 14 x (14 : 7)
= 22 x 14 x 2
= 308 x 2
= 616 cm²
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Jawab:
a) keliling = 88 cm
b) luas = 616 cm²
Penjelasan dengan langkah-langkah:
a) keliling
= 2 x π x r
= 2 x [tex]\frac{22}{7}[/tex] x 14
= 2 x 22 x (14 : 7)
= 2 x 22 x 2
= 44 x 2
= 88 cm
b) luas
= π x r x r
= [tex]\frac{22}{7}[/tex] x 14 x 14
= 22 x 14 x (14 : 7)
= 22 x 14 x 2
= 308 x 2
= 616 cm²