Find the value of a. Then find the angle measures of the quadrilateral. The angle measures from least to greatest are, ___, ____, ____, and ____.

Question

Answer 1

Here's what we know:

360 = 2a + 2a + a + a (all the angles added together equals 360)

Now to isolate a. Start by combining like terms:

360 = 6a

Divide both sides by 6:

360 / 6 = 6a / 6

60 = a

To find 2a, multiply 2 * 60.