PLEASE HELP !! two angles in a triangle have measurements of 20 degrees and 50 degrees. what is the measure of the third angle?

Question

3 years ago

12

the options are 70 degrees, 30 degrees, 110 degrees, and 120 degrees

2 answers:

Angelina_Jolie [31] · Answer 1 · 2022-05-19T03:33:53+03:00

Answer:

The measurement of third angles of triangle is 110°.

Step-by-step explanation:

Given :-

Two angles in a triangle have measurements of 20° and 50 °.

To Find :-

Measurement of third angles of triangle

Solution :-

We know that the sum of all angles of triangle is 180°.

20° + 50° + x = 180°

combine like terms

70° + x = 180°

subtract both side from 70°.

70° - 70° + x = 180° - 70°

x = 110 °

Hence, measurement of third angie of triangle is 110°.

Brut [27] · Answer 2 · 2022-05-19T01:53:50+03:00

Brut [27]3 years ago

6 0

9514 1404 393

Answer:

110°

Step-by-step explanation:

The sum of angles in a triangle is 180°. The measure of the third angle is ...

180° -20° -50° = 110° . . . third angle