Question

Help Please

explain how to do

Answer 1

70°

Explanation:

we know that the angles in a triangle are equal to 180° and that a straight line has 180°.

180-(65+45)=110

this equation should give us the angle opposite x(the supplementary angle)

180=the sum of the angles on a straight line so

180-110=70

Answer 2

x = 110

Explanation:

all angles of the triangle MUST add up to 180 degrees.

45 + 65 = 110

180 - 110 = 70

since x is sittling on a 180 degree angle, the sum of 70 and x must equal 180 too

180 - 70 = 110