An equilateral triangle of side 3 inch each is given. How many equilateral…

2023

An equilateral triangle of side 3 inch each is given. How many equilateral triangles of side 1 inch can be formed from it?

  1. A.

    9

  2. B.

    15

  3. C.

    0

  4. D.

    6

Attempted by 33 students.

Show answer & explanation

Correct answer: A

Area of triangle = (√3/4)a2

Let number of 1 inch triangle = n

∴ n × (√3/4) 12 = (√3/4) × 32

⇒ n = 9

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