187k views
8 votes
It’s a quadrilateral parallelogram. Solve for x

It’s a quadrilateral parallelogram. Solve for x-example-1
User Noisesmith
by
7.5k points

1 Answer

9 votes
4 sided shapes have internal angles that MUST add up to 360 degrees, so add all four angles to get 360 (opposite angles are equal) so:
8x + 19 + 8x + 19 + 21x - 13 + 21x - 13 = 360
Collect like terms so
58x + 12 = 360
58x = 348
x = 6
User RaedMarji
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories