45 degree angle
In plane geometry the angles in a triangle always add to 180 degrees. Add the two angles you know together and subtract the total from 180. This will give you the third angle.70 + 65 = 135.180 - 135 = 45
It is acute
Supplementary angles are angles whose sums =180 degrees. You have a 65 degree angle + it's supplementary angle = 180 degrees. So, to find the supplementary angle, subtract 65 from 180. 180 - 65 = supplementary angle. 115 = supplementary angle. To check, add the angles together. 65 + 115 = 180 (check) (Also, you might be working with complimentary angles. Complimentary angles are angles whose sum = 90 degrees.)
65
Yes. The fourth angle is 115 degrees.
83
It must be 65 degrees because there are 180 degrees in a triangle. 90+25+65 = 180
57.5 degrees
All triangles are 180 degrees.
Since the sum of the internal angles of a plane triangle is 180 degrees, the measure of the missing angle is 65 degrees. 180 - 74 - 41 = 65 degrees.
The three angles in a triangle add up to 180. 38 + 27= 65. 180-65=115
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
Yes because the 3rd angle will be 90 degrees which is a right angle
Its 2 equal base angles will each measure 65 degrees
90 - 25 = 65. The answer is 65 degrees.
Yes, a triangle has a total of 180 degrees of its angles. Since a right triangle has one angle that is 90 degrees, the other two angles much add up to 180-90=90 degrees. 65+25=90.
The complementary angle of 65 degrees is 25 degrees and together they form a right angle of 90 degrees.