Question

Tolong bantu ya no 1 sampe 5.
pake jalan.

Answer 1

1. 1/2 x a x t
1/2 x 16 x 30
8 x 30
a. 240

2. 1/2 x d1 x d2
1/2 x (9+9) x (31+9)
1/2 x 18 x 40
18 x 20
b.360

3.P xL
28 x 21
b. 588

4. 1/2(a+b)xt
1/2(24+48) x 10
1/2 x 72 x 10
36 x 10
b.360

5. 1/2(a+b)t
1/2(29+43)18
1/2 x 72 x 18
72 x 9
a. 648