Question

Determine a medida de b sabendo que med (a)=9x+10· e med (c)=5x+58·

Answer 1

9x+10=5x+58
9x-5x=58-10
4x=48
x=12

a=9.12+10
a=118

c=5.12+58
c=118

a=c

a+c+2b=360
118+118+2b=360
236+2b=360
2b=360-236
2b=124
b=124:2
b=62