Best Answer

If two angles of a triangle each measure 45 degrees, the third angle measures 90 degrees. This is because of the Triangle Sum Theorem - The sum of the measure of the interior angles of a triangle is 180 degrees. If you know that two of the angles total to be 90 degrees, you can subtract that 90 degrees from the total 180. The result is 90 degrees.

🙏

🤨

😮

Study guides

Q: If two angles of a triangle each measure 45 degrees what is the third angle?

Write your answer...

Submit

Related questions

The third angle is 85 degrees. The sum of all internal angles in a triangle is always 180 degrees

They are all 60 degrees.

If all three angles of a triangle measure less that 90 degrees (if all three angles are acute), the triangle is an acute triangle. A triangle that has a right angle (an angle the measures exactly 90 degrees) is a right triangle. (The other 2 angles will be acute angles.) A triangle that has an angle that is greater than 90 degrees (an obtuse angle), is an obtuse triangle. (The other 2 angles will be acute angles.)

The angles in a triangle will always equal 180 degrees. 180 - 48.3 - 33.6 = 98.1

The third angle is 75 degrees. The 3 angles of a triangle add up to 180 degrees. Therefore: 45 + 60 + 75 = 180.

The other acute angle in that triangle is 40 degrees.

The sum of the angles is 180 degrees in any triangle. So 180-140 is 40 and the third angle is 40 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.

180-39-77 = 64 degrees

If that is the angles of a triangle then the 3rd angle is 110 degrees

The missing angle measure is 100 degrees.

A triangle can't measure 75 degrees. A measure in degrees applies to angles, not to polygons such as triangles. In a triangle on a flat surface, the sum of angles is 180Â°.

130 degrees is the measure of the base angles of an isosceles triangle whose vertex has a measure of 50 degrees.

The sum of the angles of a triangle is 180 degrees. A right angle is 90 degrees. So the sum of the remaining two acute angles of a right triangle is 90 degrees.

If it is an isosceles triangle then the base angles must be equal angles of 69 degrees because there are 180 degrees in a triangle and 42+69+69 = 180 degrees

The 3 angles of a triangle always add up to 180 degrees. You have 110 and 43, so that is 153 degrees. Subtract 153 from 180, and that is the remaining angle.

The three angles always add to 180, so the third angle would be 40 degrees.

The angles are 90 degrees, 57 degrees and the third angle is 33 degrees

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.

The 3rd angle must be 72 degrees because the 3 angles in any triangle add up to 180 degrees and so 54+54+72 = 180 degrees

The 3 interior angles are 90 degrees, 45 degrees and 45 degrees

85 the three angles of a triangle should add up to 180 degrees

The angles in the triangle work out as 50 degrees, 26 degrees and 104 degrees which all add up to 180 degrees.

The base angles will have equal angles of 50 degrees

Each angle is 60 degrees

People also asked