# Given a right triangle, the magnitude of one acute angle of which is 79 degrees

August 29, 2021 | education

| **Given a right triangle, the magnitude of one acute angle of which is 79 degrees, determine the size of the second acute angle of this triangular**

As you know, the sum of all the angles of any triangle is 180 °.

Since the indicated triangle is right-angled, one of its angles will be 90 °.

From this it follows that the sum of the two remaining angles will be:

180 ° – 90 ° = 90 °.

In order to determine the value of the second acute angle, it is necessary to subtract the value of the known acute angle, namely 79 °, from the sum of two acute angles.

As a result, we get:

90 ° – 79 ° = 11 °.

Answer:

The second acute angle is 11 °.

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