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Triangle ABC is an equilateral triangle if and only if the lengths AB, AC & BC are all equal and the angles ∠ABC, ∠ACB & ∠CAB are all equal (to 60o).

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Q: Triangle ABC is an equilateral triangle?
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How is a triangle the same as a equilateral triangle?

A triangle is the same as a equilateral triangle because a equilateral triangle is a triangle but it is congruent on all sides


Triangle ABC is an equilateral triangle. BC 10 What is the length of AD Give you answer to the nearest whole number?

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Are isosceles triangle sometimes an equilateral triangle


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The radius of a incircle is 14cm what is the side of the equilateral triangle abc?

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Is an equilateral triangle be an obtuse triangle?

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Find the ratio of area of the triangles ABC and PQR such that AB = BC=CA = 6m each and PQ, QR, RP are half of the sides AB BC and CA respectively?

Since the sides of triangle are equal, the triangles are equilateral. Just for your information, in this question, we do not require the length of sides. It is just additional information. :) The area of equilateral triangle is: (√3)/4 × a², where a is the side of the equilateral triangle. For triangle ABC, area will be = (√3)/4 × a² (Let 'a' is the side of triangle ABC) Since, side of triangle PQR is half that of ABC, it will be = a/2 Therefore, area of triangle PQR = (√3)/4 × (a/2)² = (√3)/16 × a² Take the ratio of areas of triangle ABC and PQR: [(√3)/4 × a²] / [(√3)/16 × a²] = 4:1