Answer:
1.
Q- acute
R- right
S-acute
2.
- QRS is a right triangle because it has a small square at the right angle.
hope this helps!
Step-by-step explanation:
Answer:
A) 
Step-by-step explanation:
Point-slope formula.

Given.
Slope (m) = 3
Points (x, y) = (2, 1)
What are we multiplying exactly?
Answer:
40.49cm²
Step-by-step explanation:
I hope it helps