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TriArea
Area = ½ · base · height. Simple and fast.
As long as you use the perpendicular height (not a slanted side), ½·base·height gives the correct area regardless of whether the triangle is right, acute, obtuse, or scalene.
Roof gables, triangular flags and banners, and cutting fabric or wood on the diagonal all rely on this exact formula.
Area
24
A = ½ · b · h
What you entered
Area
½ × 8 × 6= 24Result
Area: 24
A triangle with base 8 and height 6 has an area of 24.