Question

8. Define: Equilateral triangle and Circle​

Answer 1

Answer:

here's ur answer dude

Step-by-step explanation:

It has three sides, all are equal in length and its all interior angles are congruent to each other. The sum interior angles of equilateral triangle is 180 degree, each angle is 60 degree. If any side is extended outwards, the exterior angle can be calculated for that side.

hope it helps

Answer 2

Step-by-step explanation:

EQUILATERAL TRIANGLE

In geometry, an equilateral triangle is a triangle that has all its sides equal in length. For example, a triangle with its three sides equal to 5cm is an equilateral triangle. Since the three sides are equal therefore the three angles, opposite to the equal sides, are equal in measure. Therefore, it is also called an equiangular triangle, where each angle measure 60 degrees.

Facts:

Number of Sides = 3

Number of angles = 3

Each interior angle = 60

Each exterior angle = 120

Perimeter = 3 times of side-length

Area = √3/ 4 x (side)2

The sum of all three angles of an equiangular triangle is equal to 180 degrees.

60° + 60° + 60° = 180°

CIRCLE

In Maths or Geometry, a circle is a special kind of ellipse in which the eccentricity is zero and the two foci are coincident. A circle is also termed as the locus of the points drawn at an equidistant from the centre. The distance from the centre of the circle to the outer line is its radius. Diameter is the line which divides the circle into two equal parts and is also equal to twice of the radius.