Jawabanmu

2014-05-20T19:15:59+07:00
Jadi akar 29 kuadrat - 20 kuadrat = 35,2
jadi diagonal satunya = 70,4
a. 1/2 .70,4.40 = 1408 cm2
b. v = 1408.24 = 33792 cm3
2014-05-20T19:17:19+07:00
40 x 29 : 2 = 580 cm