Answer:
Step-by-step explanation:
5. deductive
6. deductive
7. if a figure has 3 sides, then it is a triangle
8. if a figure is not a triangle, then it does not have 3 sides
9. if a figure does not have 3 sides, then it is not a triangle
<span> x/2 - 3 = 7
Add 3 to both sides
x/2=10
Multiply 2 on both sides
Final Answer: B. 20</span>
I think the answer is 20.25 because when solving for the area of a triangle you do 1/2 base times height and so the equation would be
1/2(9)(4.5)
you would start by doing 9(4.5) which equals 40.5
then you would divide by 1/2 which equals 20.25
hope this helps:)
