Answer:
5 ft
Step-by-step explanation:
When we draw out our triangle, we should see that we have a right triangle and we need to solve for a leg:
Pythagorean Theorem: a² + b² = c²
12² + b² = 13²
144 + b² = 169
b² = 25
b = 5
Answer:

Step-by-step explanation:

= [
-
] ← evaluate for upper limit - lower limit
= (
-
) - (
-
)
=
- 8 - 9 + 
=
- 17
= 
Answer:
yes
Step-by-step explanation:
yes
More than 2 ... there is a right and a obtuse i think