How long is too long (longest number ever)

9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999

Step-by-step explanation:

infinity

Step-by-step explanation:

If, you know infinity is a number that never stop and goes on forever. Like the car brand which was created after the name which means either the stock will never stop implying or the brand will be legendary.

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°.