The area of a triangle is 21 sq. units. If two of its vertices lie on points (5, 3) and (–4, –3), then find the locus of the third vertex.

2x – 3y = 15

2x + 3y = 15

3x + 2y = 15

3x – 2y = 15

Correct Answer : A

simplifies to

If ax +by + c = 0 and dx + ey + f = 0 represent the same straight line then which of following is necessarily satisfied?

A rhombus has sides 10cm each and the circle that is inscribed in it has radius 1.5cm. What is the area of the rhombus in cm^{2}