First slide

Equation of line in Straight lines

Question

Let the line L=0 makes intercepts 4,5 on axes, then the area of the triangle formed by the line L=0 with coordinate axes is ( in square units )

Easy

A

10
B

20
C

30
D

5

Solution

Detailed solution: The area of the triangle formed by the line $\frac{x}{a} + \frac{y}{b} = 1$ with coordinate axes is $\frac{1}{2} |a \cdot b|$
Hence the required area is $\frac{1}{2} |4 \cdot 5| = 10 sq units$

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