Question 7
The diagram shows how an equilateral triangle can be cut into four pieces and
rearranged to form a square. This solution of the Haberdasher’s Puzzle is
discovered by Henry Dudeney (1857 — 1930).
If the length of the square is 19 cm and the height of the triangle is 25 cm, find
the length of the triangle, correct to the nearest whole number.

rearranged to form a square. This solution of the Haberdasher’s Puzzle is
discovered by Henry Dudeney (1857 — 1930).
If the length of the square is 19 cm and the height of the triangle is 25 cm, find
the length of the triangle, correct to the nearest whole number.
