Sebuah kerucut jari jarinya 8 cm,tinggi kerucut 6 cm. phi=3,14 tentukan: A.panjang garis pelukis B.luas alas C.luas selimut d.luas kerucut pleaseeeeee tolongin!!!!!:'(
kardilamira
A). s = √t² + r² = √6² + 8² = √36 + 64 = √100 = 10 cm B).La = πr² = 3.14 x 8² = 3.14 x 64 = 200.96 cm² C).Ls = πrs = 3.14 x 8 x 10 = 251.2 cm² D). Lp = πr (r + s) = 3.14 x 8 (8 + 10) = 25.12 x 18 = 452.16 cm²
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elsasari489
A) garis pelùkis = akar8^2 + 6^2 = akar 64+ 36 = akar 100 = 10
b). La = 2 × pi x r = 2 × 3,14 × 8 = 50,24
c). Ls = pi x r x s = 3,14 × 8 × 10 = 251,2
d). Lk = pi x r ( r + s ) = 3,14 x 8 ( 8+10) = 25,12 × 18 = 425,16
= √6² + 8²
= √36 + 64
= √100 = 10 cm
B).La = πr²
= 3.14 x 8²
= 3.14 x 64
= 200.96 cm²
C).Ls = πrs
= 3.14 x 8 x 10
= 251.2 cm²
D). Lp = πr (r + s)
= 3.14 x 8 (8 + 10)
= 25.12 x 18
= 452.16 cm²
= akar 64+ 36
= akar 100 = 10
b). La = 2 × pi x r
= 2 × 3,14 × 8
= 50,24
c). Ls = pi x r x s
= 3,14 × 8 × 10
= 251,2
d). Lk = pi x r ( r + s )
= 3,14 x 8 ( 8+10)
= 25,12 × 18
= 425,16
maaf kalau salah