90
NO
20 degrees
100 degree, 40 degree and 40 degree.
40 degrees each
Assuming the third angle is x... 180 = 15 +85 + x 180 = 100 +x 80 = x The third angle is 80 degrees
Anglw C is 63 degrees because the 3 interior angles of a triangle add up to 180 degrees
An obtuse triangle
The missing angle measure is 100 degrees.
100.
NO
30 is the answer A+ student raynaray
if angle 1 puls angle 5 ewuals 100 find the measure of angle 3
20 degrees
50 degrees if its a triangle
No, because a triangle's angles can only measure up to 180 degrees. A right angle is 90 degrees, plus another 100 degree angle would be 190 degrees.
If you are really talking about a closed triangle ABC, then the length of side "a" (given as 19) does not matter in the calculation. Sum of the angles of a triangle is 180 degrees. Angle B and C add up to 15 + 65 = 80 degrees. Hence angle A is (180 - 80) = 100 degrees
If a triangle has a 100 degree angle, it is an obtuse triangle because a 100 degree angle is an obtuse angle. angle > 90 = obtuse angle = 90 = right angle < 90 = acute