Answer:
Q5- B
Q6- H
Q7- C
Step-by-step explanation:
1) b
2) h
3) c
1) -10=-2
8-10=-2
2) 8-3(-6)=26
8+18=26
3) (72)=56
The altitude of a triangle is a line segment through a vertex and perpendicular to a line containing the side opposite the vertex.
[ by linear pair ]