If one angle is 90 and another is 13 what is the other angle

In a triangle, the sum of the interior angles always equals \(180^\circ\). Given that one angle is \(90^\circ\) and another is \(13^\circ\), you can find the third angle as follows:

1. Add the two given angles:
   \[
   90^\circ + 13^\circ = 103^\circ
   \]

2. Subtract the sum from \(180^\circ\) to find the third angle:
   \[
   180^\circ - 103^\circ = 77^\circ
   \]

So, the third angle is \(77^\circ\).

Would you like more details or have any questions?

Here are some related questions you might find interesting:

1. What are the properties of a right triangle?
2. How do you calculate the angles of an isosceles triangle if one angle is given?
3. What happens if the sum of two angles in a triangle exceeds \(180^\circ\)?
4. How do you calculate the angles in an equilateral triangle?
5. What is the exterior angle of a triangle?
6. Can a triangle have two right angles? Why or why not?
7. How do you determine if a triangle is acute, right, or obtuse based on its angles?
8. What are the properties of a triangle with angles \(13^\circ\), \(77^\circ\), and \(90^\circ\)?

**Tip:** Remember, in any triangle, the sum of the angles is always \(180^\circ\), a key principle to solve angle-related problems.

Discover how to find the third angle of a triangle when given angles are 90° and 13°. Learn the principles of triangle angles and apply them to solve this problem step-by-step. Suitable for students in Grades 6-8.

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