Question

Bantuin jawab ya..makasih

Answer 1

A.   L ABD = 1/2 . a . t
                = 1/2 . 14 . 9
                = 63 cm²
b.   L  BCD = 1/2 . a . t
                  = 1/2 . 24 . 9
                  = 108 cm²
c.  L ABCD = L ABD + L BCD
                  = 63 + 108
                  = 171 cm²

Answer 2

A) 1/2 x a x t = 1/2 x 14 x 9 = 63 cm²
b) 1/2 x a x t = 1/2 x 24 x 9 = 108 cm²
c) 63 cm² + 108 cm² = 171 cm²