Name each part of the regular pentagon with center C. 6. CV
5. WX
7. LXCY
8. CM
с
Find each measure in the regular pentagon.
9. mZWCX
10. mZCXW
z
M
Y
11. the pentagon's area if CM = 10 cm and WX = 11.8 cm
12. CM if the pentagon's area is 125 ft? and VW = 8.5 ft
13. Sam wanted to find m_ VWX, so he divided 360° by 5 and got 72°. But when he looked at the angle, he
realized it must be greater than 90°.
a. Explain Sam's error.
b. Find m2 VWX.
c. Make a conjecture relating the measures of an interior angle in a regular polygon and a central angle.

a

step-by-step explanation:

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4