Theorem:
Vertical angles are congruent.
If the angles are vertical angles, they are congruent.
Congruent angles have the same measure.
If <2 measures 31 deg, then <1 also measures 31 deg.
Answer:
8 inch
Step-by-step explanation:
dilation actor = 4/5
Scale dilation is used to change the dimensions of the line segment or anuy measurement in length.
So, 10 inch segment =
inch
thus, the 10 inch segment is equal to 8 inch on the scale.
Answer:
21 cm
Step-by-step explanation:
2 sides of a triangle must equal to more than the last side of the triangle. So, 6 + 15 is more than 6 cm, also more than 8 cm, and also more than 18 cm. So the answer must be 21 cm. I hope this helped and please mark me brainliest!