Question

<2 is a complement of <4, and m<2 = 51°. Find m<4.

39°
102°
51
129°

Answer 1

39°

Explanation:

Angles that are complement to one another add up to 90 degrees.

• This means that Angle 4 + 51 = 90

Now, to find the measure of Angle 4, we subtract 51 from 90.

• 
  `90-51`
• 
  `39`

Therefore, the answer is 39°.