COORDINATE GEOMETRY | EXAMPLES ON AREA OF TRIANGLE | LECTURE (13) | KARAN SONI

Class 11 || Basic of Coordinate Geometry || IIT-JEE || Board Exams

The medians of Delta ABC intersect at point G. Prove that: area of Delta AGB = (1)/(3) xx " area of " Delta ABC

The area of the triangle whose sides. are 5 cm, 13 cm and 12 cm is

In the given figure , angle1=angle2 and angle3 = angle4 . If BC= 7.5 cm , DE= 12.5cm and area of triangle ABC= 13.5 cm^(2) . Find the area of triangleADE .

In a triangle a = 13 , b = 14, c = 15, r =

In the given figure , DE //BC and AD : AB= 2 : 5 Find : ( " area of " Delta ADE) /( " area of " Delta ABC) ( ii) (" area of " Delta ABC)/( " area of trapezium DBCE" )

Triangle DEF is similar to triangle ABC, and both are plotted on a coordinate plane (not shown). The vertices of triange DEF are D (3,2) ,E (3,-1), and F (-1, -1). Two of triangle ABC's vettices are quadrant of the coordinate plane as vertex D, what is the y-coordinate of vertex A ?

If D ,Ea n dF are the mid-points of sides BC, CA and AB respectively of a A B C , then using coordinate geometry prove that Area of △DEF= 1/4 (Area of △ABC)

A B C is an isosceles triangle. If the coordinates of the base are B(1,3) and C(-2,7) , the coordinates of vertex A can be (1,6) (b) (-1/2,5) (5/6,6) (d) none of these