Question

6. Classify the triangle on the basis of angles
60°
60°
60°​

Answer 1

A triangle with angle measured 60° is an equilateral triangle.

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Additional Information:-

• A triangle is a plane closed figure bounded by 3 line segments.
• Vertex of the triangle is a point where two angles meet. C is a vertex of ∠ABC.
• A triangle is denoted by the Greek letter :- [delta]Δ

• Every triangle has three angles ; In the attachment, the three angles are ∠BAC, ∠ABC, ∠ACB.
• The sum of interior angles if a triangle is always equal to 180°.

In, ΔABC, ∠A + ∠B + ∠C = 180°.

★ Exᴛᴇʀɪᴏʀ ᴀɴɢʟᴇ = Sᴜᴍ ᴏғ ɪɴᴛᴇʀɪᴏʀ ᴏᴘᴘᴏsɪᴛᴇ ᴀɴɢʟᴇs ★

Types of triangle:-

• Isosceles triangle
• Equilateral triangle
• Scalene triangle

• Isosceles triangle: A triangle with at least two sides is equal.
• Equilateral triangle: A triangle with all its sides equal.
• Scalene triangle: If all the three sides of a triangle are unequal (if the sides are of different lengths).