E-book of worksheets on 'Shape & Space' (Geometry & Trigonometry)
geometry book
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Transcript of geometry book
By:
Rachel Retterath (Rockelle)
Isosceles Triangle A triangle with two
equal sides andthe angles opposite the equal sides are also equal
Equilateral Triangle A triangle with all three sides of equal length.
All the angles will be 60°
Pyramid A solid object where:
The base is a polygon (a straight-sided shape)
The sides are triangles which meet at the top (the apex).
Rectangular Prism A solid (3-dimensional) object which has six faces that
are rectangles.It is a prism because it has the same cross-section along a length.
Cone A solid (3-dimensional) object that has a circular base
and one vertex
Acute Angle An angle less than 90°
Obtuse Angle An obtuse angle is more than 90° but less than 180°
Right Angle An angle which is equal to 90°, one quarter of a full
revolution.