This video is all about finding the area of a trapezium, and finding the value of x.
The easiest way is to use the formula area = 1/2(a + b) h, although you could treat it as a compound shape, divide into a rectangle and a triangle.
In this case ABCD is a trapezium with AD = x+8, BC = x+5 and AB = x. The area is 42cm squared.
The question is aimed at around grade 7+ GCSE maths.
These types of questions appear in all the main examination boards, including Edexcel, AQA and OCR. They are popular and, once you have the basic principles, fairly similar. Please do stop the video, try the question and compare your solution!
I hope the video helps and please do leave a comment – thanks!
Watch on YouTube
I hope it becomes a little clearer as you work through the quick test videos, before moving on to the higher levels. They do take a bit of a leap forward, although should be OK if you have viewed the earlier ones.
If you would like to find out more try these!
Please do leave a comment below if you are not sure. Alternately you can view my YouTube channel and leave a comment there – I’ll always try to respond as quickly as possible.