Jayanti borrowed a sum of 16000 to purchase a washing machine at the rate of 5% per annum compounded annually for two years. Calculate the amount she will have to pay after two years and also find the interest.

Step-by-step explanation:

Amount = P(1 + r%)^n

Interest = Amount  - Principal

             = 17640 - 16000

             =  1640

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2