Answer:
Step-by-step explanation:
Formula of the circumference of the circle is 2*pi*r
1.A=pi*r^2=pi*3^2=9pi
2.A=pi*10.8^2=
3.r=14/2=7 so
A=pi*7^2=49pi
4. A=pi*(31/2)^2Km^2=15.5^2*pi
5. semicircle
A=pi*16^2/2cm^2=
6.A=pi*(22.6/2)^2=11.3^2*pi
a² - a² = 0
hope it helps
your answer would be D....
2.5
-2+5 equals 3-8= -5 divided by 2 equals -2.5
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