Answer:
Step-by-step explanation:

10=5+8=13-3 hope it helps!
Answer:
b.
Step-by-step explanation:
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:
2134
Step-by-step explanation: