Question

HELP!! Find the value of x in the triangle!! 20PTS!!

Answer 1

Solution given:

61°+(7x+4)°=20x [ exterior angle is equal to the sum of two opposite interior angle]

65+7x=20x

65=20x-7x

13x=65°

x=
`(65)/(13)`=5°

value of x=5°

Answer 2

x = 5°

Explanation:

We know that in a triangle, the measure of an exterior angle is equal to the sum of its two remote interior angles, therefore:

7x + 4 + 61 = 20x

7x + 65 = 20x

13x = 65

x = 5°