Tolong dibantu jawab nomer 17 dan 18 pake cara. makasih;)
5dregensleyer
17.) luas = d1 x d2/2 216 = 4u x 3u /2 216x2 = 12u² 432 = 12u² 432/12 = u² 36 = u² √36 = u 6 = u maka d1 = 4 x 6 = 24 d2 = 3 x 6 = 18 sisi miring ? s² =(1/2 d1)² + (1/2d2)² s² = (1/2 x 24)² + (1/2 x 18)² s² = 12² + 9² s² = 144 + 81 s² = 225 s =√ 225 s = 15 kliling ? kliling = 4 x 15 = 60 jawaban b .60
18. rumus : luas tidak arsir = La + Lb - Larsir 62 = ( p x l) + (a x t: 2) - L arsir 62 = (6x9) + (7x8:2) - L arsir 62 = 54 + 28 - L arsir 62 = 82 - L arsir Larsir = 82 -62 = 20 jawaban tidak ada ..
216 = 4u x 3u /2
216x2 = 12u²
432 = 12u²
432/12 = u²
36 = u²
√36 = u
6 = u
maka d1 = 4 x 6
= 24
d2 = 3 x 6
= 18
sisi miring ?
s² =(1/2 d1)² + (1/2d2)²
s² = (1/2 x 24)² + (1/2 x 18)²
s² = 12² + 9²
s² = 144 + 81
s² = 225
s =√ 225
s = 15
kliling ?
kliling = 4 x 15
= 60
jawaban b .60
18. rumus :
luas tidak arsir = La + Lb - Larsir
62 = ( p x l) + (a x t: 2) - L arsir
62 = (6x9) + (7x8:2) - L arsir
62 = 54 + 28 - L arsir
62 = 82 - L arsir
Larsir = 82 -62
= 20
jawaban tidak ada ..