Posted by Sal on Tuesday, March 8, 2011 at 10:11pm.
The area of largest isosceles triangle that can be drawn with one vertex at the origin and with others on a line parallel to and above the xaxis and on the curve y=27x^2 is....
A) 108
B) 27
C) 12 root 3
D) 54
E) 24 root 3

Calculus  K, Thursday, March 31, 2011 at 4:39am
D) 54
One vertex is x,y and the other is x,y
y= 27  x^2
A= 1/2 BxH
B = x  x = 2x
H = 27  x^2
A = 1/2 * 2x * (27  x^2)
Take the derivative, find when the derivative is = 0 then plug that back in to get dimensions and solve for area.
Answer This Question
Related Questions
 calculus  An isosceles triangle is drawn with its vertex at the origin and its ...
 math  9. An isosceles triangle is drawn with its vertex at the origin and its ...
 Calculus  A rectangle in the first quadrant has one vertex as the origin, and ...
 Calculus  A rectangle in the first quadrant has one vertex as the origin, and ...
 math  an isosceles triangle has a vertex at the origin. Determine the area of ...
 calculus  The hypotenuse of a right triangle has one end at the origin and one ...
 calculus  The hypotenuse of a right triangle has one end at the origin and one ...
 Math  An isosceles triangle has its vertex at the origin and the ends of its ...
 Calculus  The hypotenuse of a right triangle has one end at the origin and one ...
 Calculus  An isosceles triangle has a vertex at the origin. Determine the area ...
More Related Questions