English Medium Class 9 - CBSE Question Bank Solutions

How many least number of distinct points determine a unique line?

How many lines can be drawn through a given point.

In how many points two distinct lines can intersect?

In how many points a line, not in a plane, can intersect the plane?

In how many points two distinct planes can intersect?

In how many lines two distinct planes can intersect?

Given three distinct points in a plane, how many lines can be drawn by joining them?

How many planes can be made to pass through a line and a point not on the line?

How many planes can be made to pass through two points?

How many planes can be made to pass through three distinct points?

Find the area of a triangle whose base and altitude are 5 cm and 4 cm respectively.

Find the area of a triangle whose sides are 3 cm, 4 cm and 5 cm respectively.

Find the area of an isosceles triangle having the base x cm and one side y cm.

Find the measure of each angle of an equilateral triangle.

CDE is an equilateral triangle formed on a side CD of a square ABCD. Show that ΔADE ≅ΔBCE.

Prove that the sum of three altitudes of a triangle is less than the sum of its sides.