Answer:4 years
Step-by-step explanation:
Answer:
hmmm I get 216
(10×7)+(6×8) the front n back triangle +(6×7)+(8×7)
45
1. Isosceles, right.
2. Scalene, right.
3. Equilateral, acute.
4. Scalene, acute.
5. Isosceles, acute.
6. Scalene, obtuse.
7. Scalene, obtuse.
8. Scalene, obtuse.
9. Equilateral, acute.
10. Isosceles, obtuse.
k=3
