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E1. Using formulae : known formulae
Here is a selection of formulae from GCSE Mathematics
The area of a triangle is given by:
Area = ½base × height = ½bh
The area of a parallelogram is given by:
Area = base × height = bh
The area enclosed by a circle is given by
Area =
p
× radius
2
=
p
r
2
The volume of a prism is given by
Volume = area of base × height = Ah
Pythagoras' theorem
a
2
+ b
2
= c
2
The area of any triangle ABC is given by
Area = ½ab
sin
C
The quadratic equation ax
2
+bx+c=0 has solutions:
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