Answer:
25.12 units^2
Step-by-step explanation:
The area of a semicircle is 1/2 the area of a full circle. The area of a full circle is pi*r^2, so the area of a semicircle is 1/2*pi*r^2.
1/2*(3.14)*4^2=0.5*3.14*16=25.12
Therefore, 25.12 units^2
I hope this helped and have a good rest of your day!
Answer: A
Explanation:
Because the center of circle A is (0,1) and circle B is one unit down, it would be x^2+y^2=1 because the center of circle B is (0,0). (The equation for a circle is (x-h)^2+(y-k)^2=r^2 with h and k as coordinates of the center of the circle and r as the radius.)
Answer:
wait what the letter look weird ?
Step-by-step explanation:
Answer:
500m
Step-by-step explanation:
basically just subtract