Question

tolong jawab plis dua duanya pake penjelasan ya ThX​

Answer 1

~Luas dan Volume

Penjelasan dengan langkah-langkah:

1.

r = 14 cm

t = 20 cm

π = 22/7

V = π r^2 t

V = 22/7 x 14 x 14 x 20

V = 22 x 2 x 14 x 20

V = 12.320 cm^3

L = 2 π r (r + t)

L = 2 x 22/7 x 14 (14 + 20)

L = 2 x 22 x 2 (34)

L = 88 x 34

L = 2.992 cm^2

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2.

r = 5 cm

t = 15 cm

π = 3,14 cm

V = π r^2 t

V = 3,14 x 5 x 5 x 15

V = 706,5 x 15

V = 10.597,5 cm

L = 2 π r (r + t)

L = 2 x 3,14 x 5 (5 + 15)

L = 31,4 x 20

L = 628 cm^2

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