bantuuuuuuuuuuuuuuuuu :(
Penjelasan dengan langkah-langkah:
7. a. limas segitiga
8. L = 2 x (pl + pt + Lt)
= 2 x (6 x 3 + 6 x 4 + 3 x 4)
= 2 x (18 + 24 + 12)
= 2 x 54
=108 cm² (c)
9. L = 6 x s²
= 6 x 5²
= 6 x 25
= 150 cm² (d)
10. L = 2 x (pl + pt + Lt)
1.332 = 2 x (p x 12 + p x 18 + 12 x 18)
1.332 = 2 x (12 p + 18 p + 216)
1.332 = 2 x ( 30 p + 216)
1.332 = 60 p + 432
60 p = 1.332 - 432
60 p= 900
p = 15 cm(d)
[answer.2.content]
