Question

PLEASEEEEE HELPP MEEE WITH NUMBER 13!!!!!!

QUESTION: (IN BOLDED SHOWN IN THE 2 PICTURES)

Answer 1

∠1 = 31°

∠2 = 43°

Explanation:

All triangles have a sum of 180°

Since we know this, then we know that in the end, the sum of the two triangles should both have a sum of 180° each.

∠2 equals 43° because it corresponds to ∠C and corresponding angles have the same measurement.

Now we can find the measurement of ∠1 by using the big triangle.

180 - (106 + 43)

180 - (149)

31°

So, the measurement of ∠1 is 31°.

Now, let's check our work.

Big triangle:

106 + 43 + 31 = 180

Small triangle:

43 + 31 + 106 = 180