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Phổ biến Word Problems >

The đường kính of a circle is 18 in. Find its area in terms of pipi.

Lời Giải

T h e d iam e t er o f a c i rc l e i s 18 in . F in d i t s a re a in t er m s o f p iπ .

Lời Giải

a re a : 81 π i n^{2}

+1

Số thập phân

254.46900 \dots

Các bước giải pháp

Given:

d iam e t er : 18 in

Diện tích hình tròn đã cho

d = 18 : A = 81 π

a re a : 81 π i n^{2}

Ví dụ phổ biến

if i have 2 apples and get rid of 1 how many do i have Four subtracted from the product of 6 and a number is less than-20.Calculate the future value of an investment of a present value of 400 at an interest rate of 3% pa for 2 years compounding annually How much must be deposited today into the following account in sắp xếp to have 40 000 in 5years for a down payment on a house? Assume no additional deposits are made.An account with annual compounding and an APR of 6%5 is 20% of what number?