Area of a shaded trapezium within a rectangle involving algebra.

I have a labelled screenshot of how to go about this question

OO

Related Maths GCSE answers

All answers ▸

What is the point of bearings?


How to solve a quadratic equation.


How do I find the equation of a straight line?


If I toss a coin 3 times what is the probability of it landing on heads at least once?