The local park at Raghu’s house is in the shape of a triangle. There are 4 posts along the longest side of the park and 2 and 3posts along the other two sides respectively. If none of these posts is at any of the corners of the park, find the number of triangles that are possible with vertices at these posts.
Correct Answer : B
A straight line passes through the point (3, 2) and is perpendicular to the straight line x+ y = 3 and is perpendicular to the straight line x + y = 3. Find its equation
In the figure alongside, there are two concentric circles, centred at O, with diameters as ED and BC. OA is the bisector of ∠BAC while AB is tangent to the inner circle. If OD = 8 cm, what is the area of the triangle OAB?
Consider a rectangular grid of lines formed by m parallel lines intersecting n parallel lines that running perpendicular to them. How many different paths along the grid are possible from the top right corner to the bottom left corner? (where only downward and leftward motion is allowed)