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What is the length of the altitude of an equilateral triangle with sides of length 6?
The altitude forms a right angle triangle with half the side length and one side as the hypotenuse. Using Pythagoras: (½side)² + altitude² = side² → altitude² = side² - ¼side² → altitude² = ¾side² → altitude = (√3)/2 × side → altitude = (√3)/2 × 6 = 3√3 ≈ 5.2
How do you work out the lengths of each side of an equilateral triangle?
Use a ruler and measure one side only. All sides will measure the same if the triangle is equilateral.
What is one way in which a scalene triangle and an equilateral triangle are different?
A scalene triangle has 1 unequal side. Rather than a equilateral triangle has all equal sides.
If a triangle has one congruent side then is it a scalene triangle?
if it has one congruent side it is a scalene triangle. if it has a pair of congruent sides it is an isosceles triangle. if all the sides are congruent it is an equilateral triangle
How long other two sides an equilateral triangle if one side is 3 inches long?
3 inches, an equilateral triangle has equal side lengths and angle measures
