P=28in because there are two sides that equal 6in and two other sides that equal 8. You multiply 6 and 8 by 2 which is 6*2=12 and 8*2=16. And then you add 12 and 16
Answer:
<h2>A = 3x²</h2>
Step-by-step explanation:
The formula fo an area of a triangle:

b - base
h - height
We have
x - base
6x - height
Substitute:

Do the formula length times width times height.
Then, round like you normally would!
And for the second one, just multiply 2.5 x 6!