dwisekar45
15. L = 1/2 x a x t t = L x 2 : a = 56 x 2 : 8 = 14 cm 16. L = a x t x 1/2 = 20 x 9 x 1/2 = 90 cm2 17. L = a x t = 8 x 5 = 40 cm2 18. K = d x phi = 14 x 22/7 = 44 cm 19. V = s x s x s = s3 = 12^3 = 1728 cm3
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muhammadhadyan
Luas segitiga = 1/2 alas x tinggi 56=1/2 x 8/ tinggi ... tinggi= 2 x 56/8 = 2 x 7=14
15. alas =20 dan tinggi 9 maka luas =1/2 x20x9= 90
17. luas trapesium = alas x tinggi = 8 x 5 =40
18. keliling lingkaran = 2 x 22/7 x r =2 x 22/7 x 7 = 44 luasnya = 22/7 x r x r = 22/7 x 7 x 7 = 154 19. volume kubus - sisi x sisi x sisi (pilek ya.... ) = 12 x 12 x 12 =1728
t = L x 2 : a
= 56 x 2 : 8
= 14 cm
16. L = a x t x 1/2
= 20 x 9 x 1/2
= 90 cm2
17. L = a x t = 8 x 5 = 40 cm2
18. K = d x phi
= 14 x 22/7
= 44 cm
19. V = s x s x s
= s3
= 12^3
= 1728 cm3
56=1/2 x 8/ tinggi ... tinggi= 2 x 56/8 = 2 x 7=14
15. alas =20 dan tinggi 9 maka luas =1/2 x20x9= 90
17. luas trapesium = alas x tinggi = 8 x 5 =40
18. keliling lingkaran = 2 x 22/7 x r =2 x 22/7 x 7 = 44
luasnya = 22/7 x r x r = 22/7 x 7 x 7 = 154
19. volume kubus - sisi x sisi x sisi (pilek ya.... )
= 12 x 12 x 12 =1728