Question

(a) A triangle with each angle equal to one third of a straight angle is called a/an _ triangle
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Answer 1

Answer:

An Equilateral triangle.

What is an Equilateral triangle ?

• An equilateral triangle is a triangle in which all three sides have the same length.
• Also, the three angles of the equilateral triangle are congruent and equal to 60 degrees.
• All three sides are equal.
• In an equilateral triangle, median, angle bisector, and altitude for all sides are all the same.

Things to know about equilateral triangle :

• Number of side = 3
• Number of angles = 3
• Interior angle (each) = 60
• Exterior angle (each) = 120
• Perimeter = 3 x side
• Area = √3/ 4 x (side)²