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what is the measure of angle y



What Is The Measure Of Angle Y class=

Sagot :

Answer:

Step-by-step explanation:

You are given a right triangle. The square in the  corner of the triangle tells you that that angle = 90°.  Also the sum of all three angles in a triangle = 180°.

Sum of the angles in the triangle = 40° + 90° + y = 180°

                                                              130° + y = 180°

                                                                       y = 180° - 130°  

                                                                       y = 50°

Second way:

The acute angles of a right triangle = 90°. Therefore  40° + y =  90°

                                                                                                 y = 90° - 40°

                                                                                                 y = 50°