A quadrilateral that has all congruent sides and all right angles is known as a square.
Given is a quadrilateral with all right angles and congruent sides.
<h3>What is a Quadrilateral?</h3>
A four-sided polygon having four sides and four corners is referred to as a quadrilateral in geometry .
<h3>What are Congruent sides?</h3>
Congruent sides refers to a figure's sides being equal to one another.
We know that,
A square is a quadrilateral with angles that are each 90 degrees.
Additionally, a square has four equal sides, making it a quadrilateral having all sides congruent.
As a result, a square is a quadrilateral with congruent sides and all right angles.
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13. 81.64
14. 803.84
15. 153.83
16. 753.6
you just use circumference and area formulas for a circle
From the graph, when x = 1, y = 57,000.
Replace x with 1 in the equations and see if any of the Y 's equal 57,000 :
y = -2610.82(1) + 47860.82 = 45,250
y = 219(1)^2 - 6,506.78(1) + 59,385 = 219 - 6506.78 + 59385 = 53,097.22
y = 54041.5(0.9)^1 = 48,637.35
y = 10,504.6 (1.1)^1 = 11,555.06
The second equation is the closest. so try another x value to see if it is close to the Y value:
Let's try x = 14:
y = 219(14)^2 - 6506.78(14) + 59,385 = 42924 - 91094.92 + 59385 = 11,214.08
This is close to Y = 12,00 shown on the graph
SO the closest equitation is y = 219x^2 - 6506.78x + 59385
