10×sine of 60 degrees=8.66 which is the same as B. you can check by finding the square root of 3 and then multiplying that by 5.
Angle two would be 180-m<1
180-52= 128
Measurement of angle two is 128 degrees
A negative minus a negative is always a positive ;)
Here's link to the answer:
cutt.us/tWGpn
Area shaded = Area big circle- Area of small circle;
200 pi= pi•(2x)^2 -pi•6^2;
200pi= pi•4x^2 -pi•36;
200pi=pi•4(x^2 -9) divide both sides by 4pi;
50=x^2 -9; So x=sqrt(59)~7.68cm