I think it is a square because a square has 4 equal sides and four right angles I hope this helped u!

<u>Step-by-step explanation:</u>
Here , we have In August, Cory begins school shopping for his triplet daughters. One day, he bought 10 pairs of socks for $2.50 each and 3 pairs of shoes for d dollars each. He spent a total of $135.97. We need to find What does d equal . Let's find out:
One day, he bought 10 pairs of socks for $2.50 each
Following is the equation for this info:
⇒ 
⇒ 
3 pairs of shoes for d dollars each
Following is the equation for this info:
⇒ 
⇒ 
He spent a total of $135.97
Following is the equation for this info:
⇒ 
⇒ 
⇒ 
⇒ 
Therefore ,
.
Answer:
A
Step-by-step explanation:
You should know the area of a circle, A = πr².
So, all you need to find is the area of half a circle, or A =
πr²
We see that the radius is half of the diameter or r = 6 in.
A =
(3.14)(6)²
A = 56.52 in²