Jawaban:
7. 2πr (r+t)
2. 22/7.35 (35+40)
=2.22.5. (75)
= 220.75
= 16.500cm
8. πr (r+s)
= 22/7.7 (7+25)
=22. 32
=704cm
9. S³ = 7³ = 343cm
10 4πr²
= 4.3.14.20.20
= 5.024cm
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Jawaban:
7. 2πr (r+t)
2. 22/7.35 (35+40)
=2.22.5. (75)
= 220.75
= 16.500cm
8. πr (r+s)
= 22/7.7 (7+25)
=22. 32
=704cm
9. S³ = 7³ = 343cm
10 4πr²
= 4.3.14.20.20
= 5.024cm