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In 7-9 by Guru (6.1k)  
edited

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+1 vote
by Guru (6.1k)  

Geometry

Practical excercices:

1. Go around your home and take pictures of things that represent the following (Google the names first if needed!):

  • Cone
  • Pyramid
  • Rectangular prism
  • Sphere
  • Tetrahedron
  • Cylinder
  • Cuboid

2. Draw a floor plan of your dream house. Use at least the following shapes in your plan and name them in your drawing.

  • Quadrilateral
  • Circle
  • Square
  • Rectangle
  • Parallelogram
  • Trapezoid

3. Practice using the compass by drawing these beautiful mandala shapes.

Let’s learn the theory:

Credit: Math Antics, YouTube

Exercises:

1. Draw a circle and mark the following parts in it:

  • Diameter
  • Radius
  • Chord
  • Circumference

2. Try to find as many objects around you that are shaped like a circle. Take some thread and measure their circumference and diameter. Plot the results in a graph (example below). What do you notice?

Object

Circum-
ference

Diameter

Circum-
ference
/Diameter

3. Calculate the circumference of a circle when the radius is:

  • 5,6 cm
  • 12,6 m
  • 1,0 km
  • 0 m

4. The circumference of a circle is 74,2 m. Calculate:

  • The diameter
  • The radius



0 votes
by Olympian (1.9k)  

Angles:

A link to the playlist about angles

Thanks to mathantics

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