Question

Angle Abc and bca are supplimentary. Angle abc is 140 degrees. If angle bca is named as x over 2 plus ten, what could be the value of x

Answer 1

x-60

Explanation:

Supplementary angles add up to 180 so bca must be 40 degrees.

x/2+10=40

-10 from both sides

x/2=30

Multiply 2 to both sides

x=60