Enlarging
PR/QP/QR = k
Area = k2
Volume = k3
Area of a triangle
Area = base x height : 2
Area of a parallelogram
Area = base x height
Area of a circle
Area = π x radius x radius
Circumference of a circle
Circumference = π x diameter
Volume of a cuboid/prism/cylinder
Volume = base area x height
Volume of a pyramid/cone
Volume = x base area x height
Volume of a sphere
Volume = x π x r3
Area of a sphere
Area = 4 x π x r2
REACTIES
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