Answer:
1. AC=EC=120 ft
2. Given as perpendicular
3. BC=CD
4. Perpendicular means 90° from the bridge
5. Area of Triangle same
Use cosine.

We have:
adjacent = 9cm and hypotenuse = 17 cm

X/5 + 7 = 14
x/5 = 7
x = 7/5
y don't he just paint it green then he will have a green house and he can let the smoke roll