Answer:
Missing side is 15 in
area 150 in^2
Step-by-step explanation:
x = √ (25^2 - 20^2)
x = √ 625 - 400
x = √ 225
x = 15
area = bh/2
area = (20 * 15) /2
area = 300 / 2
area = 150
