Trapezium: Area of Trapezium = ½×(a + b)×h where: a, b = sides, h = height Perimeter of Trapezium = a + b + c + d where: a, b, c, d = sides
Step 1: Area = ½ * (a + b) * h = ½ * (3 + 4) * 2 = ½ * 7 * 2 = 7. Find the perimeter of a trapezium using the sides length as 3, 4, 5: Perimeter = a + b + c + d = 3 + 4+ 5 + 6 = 18.
6 of 7
SOH-CAH-TOA.
SOH >> Sin = Opposite over Hypotenuse CAH >> Cos = Adjacent over Hypotenuse TOA >> Tan = Opposite over Adjacent.
7 of 7
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Card 2
Front
Factorise: x² + 2x - 8. We need to split the 2x into two numbers which multiply to give -8. This has to be 4 and -2.
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