Question

Please answer this in two minutes

Answer 1

a=31 degrees

Explanation:

Use the remote interior angles theorem. a+48=a+2+a+15. That simplifies to a+48=2a+17. a=31 degrees. Hope this helps :D

Answer 2

a = 31

Explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

a + 48 is an external angle of the triangle, thus

a + 48 = a + 2 + a + 15, that is

a + 48 = 2a + 17 ( subtract a from both sides )

48 = a + 17 ( subtract 17 from both sides )

31 = a