Question

If one angle of a triangle is 63 and the other two are 7x degrees and 6x degrees what is X worth

Answer 1

X= 9

Explanation:

The angles in a triangle all add up to 180°

Hence we can form this equation :

63 + 7x + 6x = 180°

Subtracting 63 from both sides:

7x + 6x = 117°

Adding together to find the total X:

13x = 117°

Finally, diving by 13 on both sides:

X = 9

Answer 2

x = 9

Explanation:

Sum of all angles of a triangle = 180

63 + 7x + 6x = 180

63 + 13x =180

13x = 180 - 63

13x = 117

x = 117/13

x = 9