Zaymiey

📐 Mathematics  ·  Straight Lines  ·  JEE

Area of triangle with vertices (0,0), (4,0), (0,3) is:

Answer: 6 sq units.

  • A 6 sq units
  • B 8 sq units
  • C 12 sq units
  • D 7 sq units

Correct answer: A. 6 sq units

Explanation: Right triangle with base 4 and height 3. Area = (1/2) × 4 × 3 = 6 sq units.

Slope as Rise over Runxy(x₁,y₁)(x₂,y₂)run = x₂−x₁rise = y₂−y₁m = rise/run = (y₂−y₁)/(x₂−x₁) = tanθ

The slope of a line is the ratio of vertical change (rise) to horizontal change (run) between any two points on it - equivalently, the tangent of the angle θ the line makes with the positive x-axis.

Concept context

Points, lines, and curves on the Cartesian plane

Read the full Straight Lines notes →