In the given question, find out which of the figures (1), (2), (3) and (4) can be formed from the pieces given in figure (X).
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) →
Note: The given answer is as per the official NTA Answer Key. However, the pieces as printed in the paper cannot form the triangle of Option (1), as explained below.
The triangle of Option (1) has a right angle and two equal sides. The lines joining the mid-points of its sides cut it into four equal right triangles with two equal sides, and three pieces of figure (X) are right triangles of about this shape. The answer given by NTA makes the triangle only if the fourth, small piece is one too:
As printed, the small piece at the bottom right of figure (X) has three nearly equal sides, so each of its corners is about 60°: it has no right angle and no 45° corner to fit the fourth part, and gaps are left:
Three pieces are ready for the triangle; the fourth looks as if it came from another puzzle box.