How to Find Altitude in Triangle?

Use the formula (A=frac{1}{2}bh)

Solve for altitude: (h=frac{2A}{b})

Identify the base (b) of the triangle

Find the area (A) of the triangle

Substitute (A) and (b) into (h=frac{2A}{b})

Calculate the altitude (h)

For an equilateral triangle, use (h=frac{sqrt{3}}{2}s)

For a right triangle, use one leg as the altitude to the other leg

For an isosceles triangle, split it into two right triangles and use the Pythagorean theorem

For any triangle, draw a perpendicular from a vertex to the opposite side

The perpendicular segment is the altitude