quiz - corrections 4-1 thru 4-4 quiz

classify by its sides

classify the triangle by its angles and sides

find the measure of angle 1 - find the measure of angle 5 first by subtracting from 180

find the measure of angle 2 - you have angle 5 from above, use that and the 65 degrees to find angle 2

find the measure of angle 3 - angle 2 plus 90

find the measure of angle 4 - is vertical of angle 5

find the measure of angle 5 - used to find the other angles. you should already have this answer.

find the measure of angle 6 - a total triangle adds to 180 so subtract

identify the congruent triangles in the figure.

by which rule are these two triangles congruent?