Answer:
A≈254 cm^2
Step-by-step explanation:
The area of a circle is given by formula: π r^2
π has a constant value of 3.14 And the radius of the circle is 9 c m
the area= π r^2 = 3.14 x (9)^2 cm^2
= 3.14 × ( 81 )
= 254.34 c m^2
≈ 254 c m^2
a
a. n x (2n +1) = 10
b. length: 5 width: 2
5 is 1 more then 2 times 2
6/2 (2+1)
6/ 2 x (3)
6/6 = 1
