The two equal sides of an isosceles triangle with fixed base b are decreasing at the rate of 3 cm per second. How fast is the area decreasing when the two equal sides are equal to the base ?

The volume of a cube is increasing at the rate of 8 cm^(3) /s. How fast is the surface area increasing when the length of an edge is 12 cm?

The volume of a cube is increasing at a rate of 9 cubic centimetres per second. How fast is the surface area increasing when the length of an edge is 10 centimetres ?

Prove that if the areas of two similar triangles are equal, then they are congruent

Let x be the length of one of the equal sides of an isosceles triangle, and let theta be the angle between them. If x is increasing at the rate (1/12) m/h, and theta is increasing at the rate of pi/(180) radius/h, then find the rate in m^3 / h at which the area of the triangle is increasing when x=12m and theta=pi//4.

Let x be the length of one of the equal sides of an isosceles triangle, and let theta be the angle between them. If x is increasing at the rate (1/12) m/h, and theta is increasing at the rate of pi/(180) radius/h, then find the rate in m^3 / h at which the area of the triangle is increasing when x=12ma n dtheta=pi//4.

Two equal sides of an isosceles triangle are given by 7x-y+3=0 and x+y=3 , and its third side passes through the point (1,-10) . Find the equation of the third side.

If in an isosceles triangle with base 'a', vertical angle 20^@ and lateral side each of length 'b' is given then value of a^3+b^3 equals

Show that the area of an Issosceles triangle is A = a^(2) theta Sin Cos theta where a is the length of one of the two equal sides and theta is the measure of one oftwo equal angles