Answer:
C: They add up to 180 degrees, because they are a pair of supplementary angles
Step-by-step explanation:
<1 and <2 add up to 180 degrees, so they are supplementary angles.
Complementary angles add up to 90 degrees.
Answer:
C
Step-by-step explanation:
Both triangles have three angles of the same value.
Remember that the angles in all triangles add up to 180°.
Let's use that to find out the unknown angles.
For the first triangle:
180 - 82 - 43 = 55°
55° is also in the second triangle.
Let's check with the second triangle:
180 - 82 - 55 = 43°
43° is also in the first triangle.
Therefore, both triangles are similar as the angles in both triangles are the same - 82°, 43° and 55°.
Hence, C.