Tolong jwb dengan cepat dan caranya!!!!! yang pr lhoooo
Farah04123
1. L1 = p x l = 30 x 20 = 600cm persegi L2 = 1/2 x phi x r x r = 1/2 x 314/100 x 10 x 10 = 157 cm persegi L1 - L2 = 443 cm persegi 2. L1 = s x s = 28 x 28 = 784 cm persegi L2 = 1/2 x phi x r x r = 1/2 x 22/7 x 14 x 14 = 308 cm persegi L1 - L2 = 476 cm persegi
= 30 x 20 = 600cm persegi
L2 = 1/2 x phi x r x r
= 1/2 x 314/100 x 10 x 10 = 157 cm persegi
L1 - L2 = 443 cm persegi
2. L1 = s x s
= 28 x 28 = 784 cm persegi
L2 = 1/2 x phi x r x r
= 1/2 x 22/7 x 14 x 14
= 308 cm persegi
L1 - L2 = 476 cm persegi