10 windows : divide 40/5=8
Then divide 80/8 =10
Answer: -2(f + 5)
Explanation:
Answer:
The missing angle 'x' is 22.29°.
i.e. 
Step-by-step explanation:
Let 'x' be the missing angle of the triangle.
Using the formula
tan x = opp ÷ adjacent
tan x = 30 ÷ 72
tan x = 0.41


Therefore, the missing angle 'x' is 22.29°.
i.e. 
Answer:
Can you take a better picture
Step-by-step explanation: