Evaluate the volume of the cone. use ñ=3.14

The circumference of the base is 40 cm, and this equals 2*pi*r. The radius, r, is found as follows:

40 cm

r = = 6.369 cm. The area of the base, A = pi*r^2, = 3.14*40.570

2(3.14)

The volume here is V = (1/3)(area of base)*(height)

= (1/3)(127.45)(9) cm^3 = 382.36 cm^3 (answer)

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

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step-by-step explanation: