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10 questions from this quiz
12×base×height\frac{1}{2} \times \text{base} \times \text{height}21×base×height
Perpendicular distance to the base
12×a×b×sin(C)\frac{1}{2} \times a \times b \times \sin(C)21×a×b×sin(C)
Two sides and included angle known
303030 cm²
32\frac{\sqrt{3}}{2}23
The angle between sides aaa and bbb
242424 cm²
Any side of the triangle
When height is given or easily found
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