Question

Write all properties of triangles and quadrilatrals

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Answer 1

Triangles on basis of angles

• Acute Triangle: This is a triangle in which all the angles are acute.

• Right Angled Triangle: It is a form of a triangle wherein one particular angle is a right angle.

• Obtuse Triangle: Triangle in which one of the angles stays obtuse is called as an obtuse triangle.

Triangle on basis of sides

• Scalene, meaning that every side length in a triangle tends to be different.

• Equilateral means that every side length in a triangle is similar.

• Isosceles triangle means, at least two of the triangle side lengths are similar.

Quadrilateral

Square

• Opposite sides are parallel, with all sides being equal

• Each of the angles is 90°

• A square has four lines of symmetry

• The order of rotational symmetry is 4

• The diagonals bisect each other at 90° or right angles

b) Rectangle

• The opposite sides are parallel and equal

• All the angles in a rectangle are 90°

• Lines of symmetry are two

• Rectangle has a rotational symmetry of 2

c) Parallelogram

• The opposite sides are parallel and equal

• Parallelogram has equal opposite angles

• There are no symmetry lines

• Rotational symmetry order is 2

d) Kite

• A kite has a single line of symmetry

• The diagonals intersect at 90° or right angles

Answer 2

Answer:

Triangle

1.

the sum of the angles in a triangle is 180 degree

2.exterior angle of a triangle is equal to the sum of interior opposite angles.

Quadrilateral

1.

the angle sum of quadrilateral is 360degree