Answer:
Step-by-step explanation:
Unit circle
Answer:
415.96yds sq
Step-by-step explanation:
ok so you have two squares, three rectangles, two semicircles, and half the SA of a cylinder.
SA of the squares=(8*8)*2=128
SA of the rectangles=(10*8)*3=240
SA of the semicircles= 3.14*r*r=3.14*4*4=3.14*16=50.24
SA of half the cylinder= (2*3.14*r*h)/2= (2*3.14*4*10)/2=(3.14*80)/2=251.2/2=125.6
Now you add them all together
128+240+50.24+125.6=415.96
and you add units
415.96yds sq
Answer:
D
Step-by-step explanation:
The area of a circle can be found using:
a=πr^2
We know that the radius is 10 meters. Therefore, we can substitute 10 in for r.
a=π*10^2
Evaluate the exponent
a=π*100
Multiply pi and 100
a=314.159265359
Round to the nearest tenth: there is a 5 in the hundreth place, which indicates we round up the 1 in the tenths place to a 2.
a=314.2
The area is 314.2 square meters, or choice D
