Which of the numbers below are closest to 400?
A. 308 B. 411 C. 391 D. 425

option c .391

Step-by-step explanation:

we can find out which one is the closest to 400 , by finding out the difference between the numbers.

option A 308

400 -308 = 92

difference is 92

option B 411

411- 400 = 11

difference is 11

option C

400 - 391 = 9

difference is 9

option D

425 - 400 = 25

difference is 25

hence the option with the lowest difference is closest to 400

this is:

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

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