Cant answer this without giving an equation
Answer:C
Step-by-step explanation:
your answer is 390
First area of the rectangle which formula is bxh base time height.
that gives you 300 since 15x20=300
The for the triangle Formula is Basexheight deivded by 2
so 15x12 devided by 2 =90
300+90=390
Hope this helps you. :)
I assume the denominator is (4-√3)
Multiple both top and bottom by (4+√3)
[5(4+√3)]/[(4-√3)(4+√3)]
=[20+5√3]/[4²-(√3)²]
=[20+5√3]/13
