Answer:
230
Step-by-step explanation:
9 times 20 = 180
divide by 2 = 90
7 times 20 = 140
140 + 90 = 230
A=230 cm2
A1= L x W HEIGHT OF TRIANGLE=16-7=9
A1=20 x 7
A1=140 cm2
A2=1/2 x B x H
A2=1/2 x 20 x 9
A2=90 CM 2
