The straight lines x + y – 4 = 0, 3x + y – 4 = 0 and x + 3y – 4 – McqOptions

MCQOPTIONS

1.	The straight lines x + y – 4 = 0, 3x + y – 4 = 0 and x + 3y – 4 = 0 form a triangle, which is
A.	isosceles
B.	right-angled
C.	equilateral
D.	scalene
Answer» B. right-angled

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