X would equal 2.7 //////////////
Answer:
The surface area is A≈96ft²
Hello!
to find the percent of a whole, use this equation here:
(remaining) / (total) = X
X * 100 = %
in this case:
12 / 15 = 0.8
0.8 * 100 = 80
your answer is 80%
I hope this helps, and have a nice day!
The value of a is 70° and b is 20°
