Wednesday

April 1, 2015

April 1, 2015

Posted by **Priscilla** on Friday, April 10, 2009 at 7:22pm.

a. write the area of the ellipse as a function of a.

b. Find the equation of the ellipse with an area of 264 square centimeters.

c. Complete the table and make a conjecture about the shape of the ellipse with a maximum area.

a 7 8 10 11 12 13 14

b

area

- geometry -
**drwls**, Friday, April 10, 2009 at 8:05pm(a) The area of an ellipse is

A = pi*a*b.

In this case,

A = pi * a * (20 - a)

(b) Set A = 264 and solve for a. Than use a+b=20. to get b, Then write the equation

(c) Complete the table using a+b=20. If a = 7, b = 13.

See which combination of a and b gives you a maximum value of a*b, and therefore of the area. I suspect it will be a = b = 10

This is work you should be able to do yourself.

- geometry -
**madilene**, Saturday, February 6, 2010 at 12:51amwhat is <mnp=60 degrees

**Answer this Question**

**Related Questions**

Calculus - I seriously do not understand anything about this problem Please ...

physics - The angular momentum of a planet is conserved if taken with respect ...

math/Check! - a. An ellipse is formed by stretching the graph of x^2+ y^2=1 ...

pre-calculus - the foci of an ellipse are (0,2) (0,-2) and the eccentricity is 1...

someone please chek my math! - a. An ellipse is formed by stretching the graph ...

Precalc - An ellipse has this Cartesian equation: ((x-2)/5)^2 + ((y-4)/3)^2 = 1 ...

Geometry - For an ellipse, one focus is (0,0), one vertex is (2,0), and the ...

Calculus - find the equation for an ellipse that satisfies the following ...

MATH/ Check? - Correct. what is pi The definition or the number? The number is 3...

math - if i am given the are and the minor ellipse... how do i find the major ...