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To answer that, we would have to know what kind of relationship there is

between the two given angles and the missing one. You haven't told us

anything about how they're related.

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12y ago
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Q: What is the missing angle if two of them are 40 and 45?
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What is the value of a missing angle of a trapezoid if two of the angle measurements are 45 degrees?

They are 135 deg each.


Are two angles ever compliments?

Yes. Two angles are compliments ("complimentary angles") if they add up to 90 degrees. E.g. 40 degrees and 50 degrees are compliments to one another. A 45 degree angle and another 45 degree angle are both complimentary and congruent (same angle).


How do you find a missing dimension for a right angle triangle?

In a right triangle, all the angle measurements together add up to be 180 degrees. And since it is a right triangle, one of the three angles is 90 degrees so if you are given one of the angles other than the right angle's measurements, you can find the angle measurements. Here's an example: There is a right triangle. One angle measures to be 45 degrees. What is the missing angle measure? Well we know that one angle must be 90 degrees and the other (as we were told) is 45 degrees. 90+45=135 and we know that a right triangle=180 degrees total and 180-135= 45. The missing angle is equal to 45 degrees! hope this makes sense and it helped.


If one acute angle on a right triangle is forty five degrees what is the measure of the other acute angle in the triangle?

since it is a right triangle there is one 90 degree angle and another of the angles is 45 degrees. there is 180 degrees in a triangle so the missing angle is 45 degrees.


Triangle side is 45 the other is 45 what is the third angle?

It is not possible to determine the measure of an angle if the lengths of two sides are given.

Related questions

What is the value of a missing angle of a trapezoid if two of the angle measurements are 45 degrees?

They are 135 deg each.


Are two angles ever compliments?

Yes. Two angles are compliments ("complimentary angles") if they add up to 90 degrees. E.g. 40 degrees and 50 degrees are compliments to one another. A 45 degree angle and another 45 degree angle are both complimentary and congruent (same angle).


How do you find a missing dimension for a right angle triangle?

In a right triangle, all the angle measurements together add up to be 180 degrees. And since it is a right triangle, one of the three angles is 90 degrees so if you are given one of the angles other than the right angle's measurements, you can find the angle measurements. Here's an example: There is a right triangle. One angle measures to be 45 degrees. What is the missing angle measure? Well we know that one angle must be 90 degrees and the other (as we were told) is 45 degrees. 90+45=135 and we know that a right triangle=180 degrees total and 180-135= 45. The missing angle is equal to 45 degrees! hope this makes sense and it helped.


What is the measurement of the third angle of a triangle if the first two were 45 degrees?

If the first two add up to 45 degrees, then the third angle is 135 degrees.If each of the first two is 45 degrees, then the third angle is 90 degrees.


If two angles in a triangle are 30 and 45 what does the third angle measure?

Two of the angles measure 30 and 45. Thus, third angle = 180 - (30+45) = 180 - 75 = 105


If one acute angle on a right triangle is forty five degrees what is the measure of the other acute angle in the triangle?

since it is a right triangle there is one 90 degree angle and another of the angles is 45 degrees. there is 180 degrees in a triangle so the missing angle is 45 degrees.


Triangle side is 45 the other is 45 what is the third angle?

It is not possible to determine the measure of an angle if the lengths of two sides are given.


What does the 40 degree angle look like?

Very similar to to a 45 degree angle, but a bit smaller. Imagine half of a right angle which is 90 degrees.


What is the name where two lines meet at a 45 degree angle?

That would be a Complementary Angle.


How do you find the missing side of a 45 45 90 triangle?

Since 2 of it's angles are equal (45 degrees), you have an isoceles triangle. Hence, two of its sides are the same. Since the other angle is 90, you have a right angle triangle. This means that if you're missing the hypotenuse, you can use the Pythagorean theorem to find it. H^2 = A^2 + B^2 Where H is the length of the hypotenuse, and A and B are the lengths of the other 2 sides. (Here, A = B).


Can an angle have the measure as its complement?

Assuming two angles are complementary, an angle can have the same measure as it's complement when it measures 45 degrees. BECAUSE 45 +45 =90!!


Can an isosceles triangle be a right triangle?

yes, one angle 90 degrees(right angle), the other two 45 degrees 90 + 45 + 45 = 180