volume bangun gabung di atas yang benar adalah a .2310 cm³ B .3850 cm3 c. 5.390 cm³ d .15 400 cm3
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Verified answer
Penjelasan dengan langkah-langkah:
v kerucut = 1/3 x π x r² x t
v = 1/3 x 22/7 x 7² x 15
v = 1/3 x 154 x 15
v = 1/3 x 2.310
v = 770
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v tabung = π x r² x t
v = 22/7 x 7² x 20
v = 154 x 20
v = 3.080
_____
770 + 3.080 = 3.850 cm³
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@rasyidafd.
V.GAB = VT + VK
= (22/7(7(7(20) + (1/3(22/7(7(7(15)
= (22/7(7(140) + (1/3(22/7(7(105)
= (22/7(980) + (1/3(22/7(735)
= (22(980/7) + (1/3(22(735/7)
= (22(140) + (1/3(22(105)
= 3.080 + (1/3(2.310)
= 3.080 + (2.310/3)
= 3.080 + 770
= 3.850 CM³
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