A method for calculating the area of a triangle when you know the lengths of all three sides. Area c² sina cosa 2. Area frac12 base cdot height frac12 24 cdot 276 3312 text inches squared.
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Multiply their values then divide by 2. The area of the triangle is given by the formula mentioned below. Area of a triangle whose side a is 3 side b is 4 and side c is 5. Find the area of a triangle where height 5 cm and width 8 cm.