The answer to you question is b = 2537.5 I think
I believe it is 1250
Explanation: Area of a triangle=1/2bh-1/2•20•30
Area of square=bh-25•25
Add your answers together then you get 1250
1=function
2=not function
3=not function
4=function
Answer:
64cm² I think :) if u get it wrong dont blame it on me.
