Square abcd is inscribed in circle p, with a diagonal that is 18 centimeters long. find the exact length of the apothem of square abcd.
a. 18√2
b. 9√2
c. 9√2 over 2
d. 9 over 2

C

Step-by-step explanation:

The Square ABCD inscribed in a circle is shown in the picture attached.

Let's find the side length of the square using pythagorean theorem:

Since, is HALF of SIDE LENGTH, is:

Since, and are equal, we can say

Apothem's length is . Answer choice C is right.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0