Q18 of 59 Page 162

The base and the altitude of a triangle are (3x – 4y) and (6x + 5y) respectively. Find its area.

Base of triangle = (3x – 4y)


Altitude of triangle = (6x + 5y)


Area of triangle


⇒ Area of triangle


⇒ Area of triangle


⇒ Area of triangle


More from this chapter

All 59 →
16

The perimeter of a triangle is 15x2 – 23x + 9 and two of its sides are 5x2 + 8x – 1 and 6x2 – 9x + 4. Find the third side.

 17

The two adjacent sides of a rectangle are 2x2 – 5xy + 3z2 and 4xy – x2 – z.

 19

The sides of a rectangle are 2x + 3y and 3x + 2y. From this a square of side length x + y is removed. What is the area of the remaining region?

 20

If a, b are rational numbers such that a2 + b2 + c2 – ab – bc – ca = 0, prove that a = b = c.