Respuesta :
let the rectangle l meters long
perimeter = 2l + 2w
56 = 2l + 2w
28 = l + w
l = 28 - w
area of rhombus = ½•l•w
f(w) = ½•(28-w)•w
= 14w - ½w²
The area of the rhombus as a function of the rectangle's width is f(y) = 14y - ½y².
What is Rhombus?
A rhombus is a quadrilateral whose four sides all have the same length.
Here,
Let the length of rectangle be x meters
Perimeter of rectangle = 56 meters.
perimeter = 2(x+y)
56 = 2(x+y)
28 = x+y
x = 28 - y
area of rhombus = ½•x•y
f(y) = ½•(28-y)•y
f(y) = 14y - ½y²
Thus, the area of the rhombus as a function of the rectangle's width is f(y) = 14y - ½y².
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