If the length of an altitude of an equilateral triangle is 12 feet can you find the length of a side of the triangle?
We can use the Pythagorean theorem and properties of sines, cosines, and tangents to solve the triangle, that is, to find unknown parts in terms of known parts. * Pythagorean theorem: a2 + b2 = c2. ChaCha!
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About Pythagorean Theorem
The Pythagorean Theorem states ''In any right triangle, the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares whose sides are the two legs (the two sides that meet at a right angle).''
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