So if you missed the last couple of days here is what went down during our online lessons during week one of the lockdown (Edition 2) First Mr Janse reminded us what Geometry is all about. Hopefully I can do it some justice.
Hold on tight guys, here goes nothing! Geometry is a branch of mathematics that studies the sizes, shapes, positions angles and dimensions of things.
Next was a reminder of the difference between a 2-D shape and a 3-D object. Flat shapes like squares, circles, and triangles called 2D shapes. These shapes have only 2 dimensions, the length and the width.
Solid objects are also known as 3D objects having the third dimension of height or depth.
On Thursday we explore angles and got into naming, describing and on Friday, measuring angles. Watch out for my next blog post about that.
So what is an angle? The vertex of a shape where two edges meet form an angle. Different shapes in geometry have different angle measures.
For example:
A triangle is a 3 sided shape, and the measure of its 3 interior angles is 180˚
A square, rectangle or quadrilateral are 4 sided shapes, and the measure of their interior angles is 360˚
Other polygons like the pentagon, hexagon, heptagon, octagon have 5, 6, 7, 8 sides respectively and varying angles.
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