5dregensleyer
T = 34 - 10 = 24 r = 1/2 x 14 = 7 s = √ 24² + 7² = √ 576 + 49 = √ 625 = 25 luas permukaan Lp = Luas alas + slimut tabung + slimut krucut = ( π x r²) + ( 2 x π x r x t) + ( π x r x s) = ( 22/7 x 7 x 7) + ( 2 x 22/7 x 7 x 10) + (22/7 x 7x 25) = 154 + 440 + 550 = 1144 cm²
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BagasLionHart
Pertama dicari dulu brp tinggi kerucut sama garis pelukis kerucutnya tinggi kerucut= 24 garis pelukis = 25 luas prmukaan tabung = 2 r (r+t) = 2 . 22/7 . 7 (7+24) = 2.22.31 =1364 luas prmukaan kerucut = r (s+ t) = 22/7 . 7 ( 25+24) = 22. 49 = 1078 1364+1078 = 2442 emg ngga ada jawabannya gan
= 24
r = 1/2 x 14
= 7
s = √ 24² + 7²
= √ 576 + 49
= √ 625
= 25
luas permukaan
Lp = Luas alas + slimut tabung + slimut krucut
= ( π x r²) + ( 2 x π x r x t) + ( π x r x s)
= ( 22/7 x 7 x 7) + ( 2 x 22/7 x 7 x 10) + (22/7 x 7x 25)
= 154 + 440 + 550
= 1144 cm²
tinggi kerucut= 24
garis pelukis = 25
luas prmukaan tabung = 2
= 2 . 22/7 . 7 (7+24)
= 2.22.31
=1364
luas prmukaan kerucut =
= 22/7 . 7 ( 25+24)
= 22. 49
= 1078
1364+1078 = 2442
emg ngga ada jawabannya gan