5 less that a number 7 is under 20

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

40 points. given: two congruent angles ∠c and ∠r are supplementary. prove: ∠r and ∠c are both right angles. it doesn't have to be exactly 10 rows.statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.