The angle to the left of angle 1 is 70, so angle 1 is equal to 180 - 70 - 70 which is 40,
Answer:
See Explanation
Step-by-step explanation:
Required
Expression for area of triangle
This is calculated using

Assume that:

The equation becomes

Answer: A≈113.1in²
Step-by-step explanation:
Answer: D 1 and 5/72 sq ft
Answer:60-30 I guess
Step-by-step explanation:n60-30=30