Answer:
Area: 96 x pi
Perimeter: 8 x pi
Step-by-step explanation:
Area: the shaded part is 1/3 of the circle and is 120 degrees of the 360 degrees of the circle
use the area formula: r^2 x pi x 120/360
plug in r=12 and you should get 96 pi
Perimeter: the formula for circumference is 2 x pi x r x 120/360
plug in r=12 and you should get 8 x pi
Step-by-step explanation:
x+2y=-4
2x+3y=1
The difference between this two equations is x+y so:
x+y
=1-(-4)
=1+4
=5
I'm not sure what the question is asking to find, but I have already helped you find the value of x+y, good luck with the rest I guess :))
Answer:
y=12
Step-by-step explanation:
2*-2=-4
-6*-2=12
y=12
Answer:
C.
Step-by-step explanation:
Answer:
54°
Step-by-step explanation:
Since the radius is not given, i'm going to assume that you are being asked for the measure of Arc FE, which is the angle the arc makes on the circumference when measured from the center of the circle.
Please refer to attached.
We can observe that FG and GE are both radii of the circle, hence they will have the same length. This also means that triangle FGE is an isosceles triangle. Which in turn means that ∠GFE = ∠GEF = 63°.
With this we can find the measure of arc FE
= ∠FGE
= 180° - 63° - 63°
= 54°
Hope this helps!