What are the types of lines?

In geometry there are four types of lines: Horizontal Line Vertical lines Parallel lines Perpendicular lines

A ray is a part of a line with one endpoint (i.e., starting point) and continues forever in the other direction.

What is perpendicular lines?

When two straight lines meet or intersect at an angle of 90 degrees, they are perpendicular to each other.

What is parallel lines?

Parallel lines are two straight lines that are always the same distance apart. They never meet or intersect at any point, even at infinity.

Basic Geometry Formulas

“These are some of the most common geometry formulas to figure out the perimeter, area, volume, surface areas, and circumference for the different shapes such as square, rectangle, triangle, parallelogram, circle, trapezoid etc.”

Square
Perimeter = 4s
Area: A = s2
Rectangle
Perimeter= 2w + 2l
Area= l × w
Triangles
Perimeter = a + b + c
Area = (1/2) × b × h
Circle
Diameter = 2r
Circumference = 2 π r = π d
Area = π r2

Trapezoid
Area =1/2h(b1 + b2)
Perimeter = a + b1 + c + b2
Isosceles Trapezoid
Perimeter = 2w + b1 + b2
Area = 1/2h(b1 + b2)
Parallelogram
Area = lh
Perimeter = 2l + 2w