Question

How would you solve this?

Answer 1

So hmm check the picture below

so.. that means the interior angle at the vertex R is 180 - 82, or 98

now, the sum of all interior angles of a polygon is 180(n - 2)

where "n" is how many sides are there in the polygon

this is a pentagon, so 5 sides, so, the sum of all the interior angles is then

180( 5 - 2)
180(3)
540

that means that

98 + 82 + c + 116 + c = 540

2c + 98 + 82 + 116 = 540      <----- solve for "c"