180
180- 40=140
140 / 2= 70
Teehee buddy boy yeetmcskeet man
Ok i can help you solve this problem do you know the formula for quadratic equations
The answer is 12 because (a^2 + b^2 = c^2)
5^2 + b^2 = 13^2
25 + b^2 = 169
169- 25 = 144

Sqaure root of 144 is 12 so If we plug that in..
25 + 144 = 169
5^2 + 12^2 =13^2
This all checks out
~Hope This helps
Answer:
25 degrees decreased by 60% is 10