If pairs of the triangles are similar and then find the value of x.

(4, -3), (-5, 2) and (x, y) are the three vertices of a triangle. If the centroid of the triangle be the origen, find the values of x and y.

The perimeter of two similar triangles are 20 cm and 16 cm respectively. If the length of one side of the first triangle is 9 cm, then find the length of the length corresponding side of second triangle.

If the sides of a triangle are in the ratio 5:8:11 and theta denotes the angle opposite to the largest side of the triangle, then find the value of "tan"^2 theta/2 .

If area of a triangle is 2 sq. units, then find the value of the product of the arithmetic mean of the lengths of the sides of a triangle and harmonic mean of the lengths of the altitudes of the triangle.

In triangle A B C ,D is on A C such that A D=B C' and BD=D C ,/_D B C=2x ,a n d/_B A D=3x , all angles are in degrees, then find the value of x

If the equation 2x^2+k x y+2y^2=0 represents a pair of real and distinct lines, then find the values of kdot

Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them

Two triangles are similar if their________ sides are proportional.

In Delta ABC, angle A = (pi)/(3) and its incircle of unit radius. Find the radius of the circle touching the sides AB, AC internally and the incircle of Delta ABC externally is x , then find the value of x.

A pair of straight lines drawn through the origin form with the line 2x+3y=6 an isosceles triangle right - angled at the origin . Find the equations of the pair of the straight lines and the area of the triangle correct to two places of decimals.