Smartick Try it for free! Abrir el Menú Móvil Try it for free!
Accelerate your child’s learning
Smartick is a fun way to learn math!

Dec23

Geometric Plane Shapes: Circles, Triangles, Rectangles, Squares, and Trapezoids

23 Comments

What are geometric plane shapes? What characteristics do they have? These are the questions that we will answer in this post.

The principal geometric plane shapes are:

The Circle

Geometric Plane Shapes

The circle is a shape that can be made by tracing a curve that is always the same distance from a point that we call the center. The distance around a circle is called the circumference of the circle.

The Triangle

Geometric Plane Shapes

The triangle is a shape that is formed by 3 straight lines that are called sides. There are different ways of classifying triangles, according to their sides or angles.

  1. According to their angles:
  • Right triangle: the largest of the 3 angles is a right angle.
  • Acute Triangle: the largest of the 3 angles is an acute angle (less than 90 degrees).
  • Obtuse Triangle: the largest of the 3 angles is an obtuse angle (more than 90 degrees).

2. According to their sides:

  • Equilateral Triangle: all 3 sides are the same length.
  • Isosceles Triangle: it has 2 (or more) sides that are of equal length. (An equilateral triangle is also isosceles.)
  • Scalene Triangle: no 2 sides are of equal measure.

The Rectangle

Geometric Plane Shapes

The rectangle is a shape that has 4 sides. The distinguishing characteristic of a rectangle is that all 4 angles measure 90 degrees.

The Rhombus 

Geometric Plane Shapes

The rhombus is a shape formed by 4 straight lines. Its 4 sides measure the same length but, unlike the rectangle, any of all 4 angles measure 90 degrees.

The Square

Geometric Plane Shapes

The square is a type of rectangle, but also a type of rhombus. It has characteristics of both of these. That is to say, all 4 angles are right angles, and all 4 sides are equal in length.

The Trapezoid

Geometric Plane Shapes

The trapezoid also has 4 sides. It has two sides that are parallel but the other 2 are not.

You can practice with the geometric plane shapes by registering in Smartick.

Learn More:

Fun is our brain’s favorite way of learning
Diane Ackerman
Smartick is a fun way to learn math
  • 15 fun minutes a day
  • Adapts to your child’s level
  • Millions of students since 2009
Share on FacebookTweet about this on TwitterShare on LinkedIn
Smartick

Add a new public comment to the blog:

The comments that you write here are moderated and can be seen by other users.
For private inquiries please write to [email protected]

Your personal details will not be shown publicly.

I have read and accepted the Privacy and Cookies Policy

23 Comments

  • SovannaryKOct 19 2021, 3:21 AM

    This helps a little bit.

    Reply
  • Ayobami ODUNTANMay 17 2021, 2:25 PM

    Good and simple I love this .

    Reply
  • Yusuf ishaqApr 18 2021, 12:48 AM

    Good

    Reply
    • Amurawaiye MatthewMay 03 2021, 6:55 AM

      Thanks for the lesson.

      Reply
  • Yunusa AhmedMar 21 2021, 7:38 AM

    We thank you for your contribution

    Reply
  • hJan 06 2021, 11:48 AM

    ok

    Reply
  • Kwabena Nyamekye Adjepong.Jun 02 2020, 10:42 AM

    Like the site.

    Reply
  • GloryJun 02 2020, 7:19 AM

    Nice and easy to understand,my kids enjoyed it!!!

    Reply
  • Ugwu DestinyMay 25 2020, 5:23 AM

    Thank you Mrs Mercy

    Reply
  • Ugwu DestinyMay 25 2020, 5:17 AM

    Nice lesson,Thank you

    Reply
  • Kelly SimpsonApr 24 2020, 9:01 AM

    Please can you put more shapes???!!!!!

    Reply
  • Abeer MizanApr 15 2020, 3:50 AM

    thank you for the lesson!

    Reply
  • AlinaSep 18 2019, 3:38 PM

    Thank the lord. I couldn’t tell the difference between square and trapezoid

    Reply
  • HerobrineMay 13 2019, 1:04 AM

    Thank you for my lesson

    Reply
  • Yola BingaliMar 28 2019, 11:16 AM

    Nice!

    Reply
  • Sai KumarDec 22 2018, 11:24 AM

    2D square problem

    Reply
    • NewcomerJan 17 2019, 1:54 PM

      There are other shapes worth considering.

      Reply
  • AmnaFeb 17 2018, 3:32 AM

    I enjoyed learning different geometrical shapes

    Reply
  • SanikaOct 28 2017, 9:58 AM

    You should tell more about each

    Reply
    • HemanthJul 17 2019, 9:34 AM

      Nice

      Reply
  • divyaJul 09 2017, 9:09 AM

    example for square,triangle,circle,rectangle

    Reply
    • Goodness okekeJun 24 2020, 8:24 AM

      Like it

      Reply
      • Krishpa RathoreFeb 17 2021, 4:06 AM

        Maths is easy

        Reply