Three identical isosceles triangles are joined together to make a trapezium. Each triangle has base b cm and height h cm. Work out an expression, in terms of b and h for the area of the trapezium.
Formula for the Area of a triangle: A = (base x height)/ 2
Here we have three identical triangles.
Therefore the formula for the Area of the three triangles: A = (b x h) x 3 / 2 = A of trapezium.
Can be simplified as: A = 3/2 x bh = 1.5bh
MC
Related Maths GCSE answers
All answers ▸What is completing the square and how do I do it?
Factorise fully x^3 - 10x^2 + 16x
Plot out y= x^2 - x - 2 for values of x from -3 to +3 and label the turning point
N=2a+b, where a is a two-digit square number and b is a two-digit cube number. What is the smallest possible value of N?