In triangle ABC, angle A = 60.25, angle B = 72.87, find the value of angle C.

As we know, in any triangle the sum of all three angles is 180 °. If we know two angles, we can easily calculate the value of the third angle. To do this, we first have to find the degree measure of two known angles, and then subtract the sum of the two known angles from the total sum of the angles. This will find the value of the third angle.

Let’s first find the sum of two angles:

1) 60.25 ° + 72.87 ° = 133.12 °.

And now we will find the degree measure of the third, unknown to us angle:

2) 180 ° – 133.12 ° = 46.88 °.

Answer: angle C = 46.88 °.