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It depends on what your measuring and the measure of the other given angles. "X" is also known as the missing angle.
ex. In triangle ABC, the measure of angle A is 40 and the measure of angle B is 80 find the missing angle.
answer- Angle C would be 60 because a triangle's angles add up to 180 degrees.
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The measure of the second angle of a triangle is 21 degrees more then the measure of the first angle the measure of the third angle is 15 degrees less than the measure of the first angle. each is?
Let the measure of the first angle be x⁰. So that the second angle would be (x + 21)⁰, and the third one would be (x - 15)⁰.Since the sum of angle measures in a triangle is 180⁰ we have:x + x + 21 + x - 15 = 1803x = 174x = 58Thus, the first angle is 58⁰, the second angle is 79⁰, and the third angle is 43⁰.
Find the measure of an angle that is 30 degrees more than its supplement?
Suppose the measure of the angle is x then its supplement is 180 - x x = 180 - x + 30 = 210 - x 2x = 210 => x = 105 degrees (supplementary angle = 75)
Two angles of a triangle measure 15 and 85 what is the measure for the third angle?
Assuming the third angle is x... 180 = 15 +85 + x 180 = 100 +x 80 = x The third angle is 80 degrees
In a triangle the measure of the middle angle is triple the measure of the smallest angle and the measure of the largest angle is 55 degrees greater then the measure of the smalest angle Find measures?
x + (3x) + (x + 55) = 1805x + 55 = 1805x = 125x = 25 . . . 3x = 75 . . . x+55 = 80Check . . . 25 + 75 + 80 = 180 yay!
What is the measure of an angle whose measure is nine times its supplement?
Supplement of an angle measure x* be y*=(180-x*). Or x+y=180* for the problem x=9y => x+y = 9y+y=10y=180 => y=18* and x =172*
