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All triangle angles add up to 180, therefore subtract 30 and 80 (110) from 180. The remaining angle is 70.

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Q: If you have two angles of a triangle that are 30 and 80 how do you find the third angle?
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Find the measures of the angles of a triangle if the measures of one angle is twice the measure of a second angle and the third angle measures 3 times the second angle decreased by 12?

Let the second angle of the triangle be A. Then angle 1 = 2A : and angle 3 = 3A - 12 The internal angles of a triangle total 180° therefore :- 2A + A + (3A - 12) = 180 6A - 12 = 180 : 6A = 192 : A = 32 The angles measure 64° , 32° and 84° .


Two angles of a triangle measure 72 and 46?

So ? ^_^ You must want to find the third angle. It's 180º minus the two you already have. So it's 62º.


If the vertex angle of an isosceles triangle has a measure of 108 what is the base angle?

In an isosceles triangle two of the sides are equal, as well as two of the angles. Because a triangle's interior angles add up to 180, only one angle could be 108, therefore the other two angle must be equal. To find the measure of the other two angles 180 - 108 = 72/2 = 36.


What is the measure of the angle named x?

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.


Find the measure of the third angle?

In euclidean (plane) geometry, the sum of the interior angles of any triangle is 180 degrees. Add the two angles you know (right angles = 90 degrees) and subtract that sum from 180. Without more information on the problem, that's the most I can assume

Related questions

How do you find the third angle of a scalene triangle?

If you have the other two angles, you can subract them from 180 degrees, which is the sum of the angles in any triangle.


If two angles of a triangle are complementary find the number of degrees in the third angle?

90


Two angles of a triangle have measures of 59 degrees and 28 degrees. find the measure of the third angle.?

The third angle is 93 degrees


How do you find the third interior angle of a triangle?

Add the first two angles together and subtract the total from 180 to find the 3rd angle


Is it possible to work out the other angles of a triangle given only one angle?

YesAnother Answer:-Yes under certain conditions depending on what type of triangle it is and the measure of the angle givenBut normally two angles are needed to find the third angle in a triangle


Find the third angle of a right triangle if the measure of on of the angles is 68?

The sum of interior angles of any triangle is 180 degrees. A right triangle is defined as a triangle having one angle that measures 90 degrees. Therefore, it follows that the sum of the remaining two angles will be 90 degrees 90-68=22 The third angle is 22 degrees


If Two angle measurements in a triangle are 35 and 77 Explain how to find the third angle measure in the triangle?

The sum of the three angles of a triangle will always be 180 degrees. So to find the third angle, one must take 180 - 35 - 77. The answer would be 68


Two angles of a triangle measure 32 and 70 Find the measure of the third angle?

The third angle is [180-(32+70)] = 180-102 = 78


What is the measure of the third angle of a triangle if one angle measures 15 degrees and the other measures 85 degrees?

The sum of the measures of the angles of a triangle is 180 degrees. First, calculate the sum of the two known angles. Then subtract that result from 180. That difference is the measure of the third unknown angle. Given: One angle of a triangle is 15 degrees and the second angle of the triangle is 85 degrees. To find: We need to find the third angle of the triangle. Let the third angle of the triangle be x. We know that the sum of the angles in a triangle is 180 degrees. ==> 15 degrees + 85 degrees + x degrees = 180 degrees. ==> 100 degrees + x degrees = 180 degress. ==> x = 180 degrees - 100 degrees. ==> x = 80 degress. Therefore the third angle of the triangle is 80 degrees.


How do you calculate the missing degree of a triangle?

The sum of all the angles in a triangle equals 180o. To find the missing angle, subtract the sum of the two known angles from 180o.ExampleTwo angles of a triangle are 35o and 62o. What is the third angle?Solution180o - (35o + 62o) =180o - 97o = 83o


How do you find the hypotenuse with one angle missing?

The total of the three interior angles in a triangle is 180 degrees. if you know two of the angles, subtract them from 180 and that gives you the third angle.


What is the third angle of a triangle whose first two angles are 34 and 105?

The inside angles of a triangle always add up to 180. So, if you add the two angles you do have (105 + 34 = 139), you can find out the third:180 - 139 = 41