A. First 40 and then 60
B. First 72 and then 108
C. First 80 and then 120
D. First 60 then 90

b) 36

step-by-step explanation:

18 times 2 is 36

not me

step-by-step explanation:

i wish i did i would like to get a desert ghost ball python

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°.

answer: the answer for that is 22/3