The formula for a regular polygon, which this one is, is A = 1/2 ap where a is the apothem and p is the perimeter. 20.8 * 7 = 145.6 which is the perimeter, so now just multiply by 21.6 and .5. 145.6 * 21.6 * .5 = 1572.48, or B above.
Answer: It is proportional because 195/3 equals 65 and 325/5 equals 65 as well, so it is proportional.
Hope this helps! :)
Answer:
D. Rectangular prism
Step-by-step explanation:
I believe the answer is D. Rectangular prism
Answer:
y = -2
Step-by-step explanation:
y + 4 = 2
y = 2 - 4
y = -2
