Two angles of a quadrilateral measure 275° and 20°. The other two angles are in a ratio of 6:7. What are the measures of those two angles?

Answer 1

Sum of angles of quadrilateral equal 360°.So, on other 2 angles we have 360° - (275° + 20°) = 65°;

6x + 7x = 65°; 13x = 65°; x = 5°. One angle equal 30° and second is 35°

Answer 2

360 - 275 - 20 = 65

6x + 7x = 65

13x = 65

x = 5

30 and 35