Remember in a right angles triangle, the right angle is 90 dgrees.
The sum of the three angles in a triangle is 180 degrees.
Hence
x + 57 + 90 = 180
x + 147 = 180
Subtract 147 from boths sides
x = 33 degrees.
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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.
Triangles measure 180 degrees. A triangle that has one 90 degree angle is known as a right triangle.
It is a right angle triangle and angle A measures 15 degrees.
If its a right angle triangle then the second acute angle is 62 degrees