A quadrilateral has two angles that measure 20° and 210°. The other two angles are in a ratio of 9:17. What are the measures of those two angles?

Answer 1

total of all 4 angles = 360

if two measure 20 and 210

then the remaining two sum to 360-20-210 = 130 degrees

one angle = 9/26 x 130= 45 degrees

the other = 17/26 x 130= 85 degrees

45+85 = 130