Find the length of the altitude of an equilateral triangle of side 33 cm.

Q: Find the length of the altitude of an equilateral triangle of side 33 cm.

Let the length of the altitude be h. Then, h = a 3 2 = 3 3 × 3 2 = 4.5

4.5
3.5
2.5
6.5

Correct Answer: 4.5

Explanation:

Let the length of the altitude be h.
Then, h = $a \frac{3}{2}$ = $33 \times \frac{3}{2}$ = 4.5

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