Question

If one desires to construct a unique triangle (i.e. three sided polygon), how many details are required?

(a) 1

(b) 2

(c) 3

(d) 4

I got this question in a national level competition.

My doubt is from Geometry topic in chapter Practical Geometry of Mathematics – Class 8

Answer 1

Right answer is (d) 4

For explanation: The basic condition to construct any triangle is having at least four information about the triangle, one cannot construct a unique triangle without that. So, the options other than 4 would be incorrect. Hence 4 is the correct answer.