3x = -212
x = 70.66667
And this is assuming it equals to zero.
m∡A = 70º
1) Considering that the Sum of the interior angles within a triangle is always 180º
2) We can write the following, and solve for x
x+80 + x +80 +40 = 180
2x +160 +40 = 180
2x + 200 = 180
2x =180-200
2x= -20
x=-10
3) So since angle A = x +80, we can plug it into that the value of x
m∡A = x +80º
m∡A=-10+80
m∡A = 70º
Hello!
A pair of angles whose sum is 90° are called Complementary Angles. The answer is Complementary because Complementary Angles are angles that make a sum of 90°. Supplementary Angle are angles whose sum is 180° and Adjacent Angles are angles that have a common side or common vertex.
I hope this helps!
1 or 6 = 2/6 (as there are 6 sides to a die)
2/6 of 300 = (300/6) x 2
300/6 = 50
50 x 2 = 100
I would predict a roll of 1 or 6 100 times
