The length of a rectangle is equal to triple the width. which system of equations can be used to find the dimensions of the rectangle if the perimeter is 86 centimeters

w=10.75 l=32.25

Step-by-step explanation:

So if we know that the length is 3 times as long as the width than if the width is x, length would be 3x.

3x+3x+x+x=86 There are two lengths and two widths

8x=86 Combine like terms

x=10.75 divide both sides by 8 and our width is 10.75

Length is 32.25 multiply 10.75 by 3

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