Sled kites rely on wind pressure to retain the shape of the sail. each consists of a single square and two triangular pieces. kyle has made a model of a sled kite as shown below. show that the angles ∠ a and ∠ b are congruent.
justify.

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.