In maths, I have been learning about angles and analogue clocks for hero maths, We have to do area and perimeter and I’ll give you an example, so the area of a square that has 10 length and 10 width would be 100 because you’re just timesing the 10 and 10. And the perimeter of a square that is 10 by 10 would be 40 since there’s 4 sides of a 2d square. The shape above is a shape split up into 3 sections, I calculated that area a would be 18cm² because 6 x 3 = 18, I thought area b was 12 because 4 x 3 = 12 and I thought area c was 10 because 2 x 5 = 10 and if I add all those numbers together I get my answer, so 18 + 12 = 30 + 10 = 40 so 40cm² would be my answer.
Say if shape a had 8 cm by 1 cm and shape b has 4 cm and 3 cm and shape c had 5 cm and 2 cm it would be 30cm² because shape a would be 8 because 8 x 1 = 8 and shape b is 12 because 4 x 3 = 12 and shape c would be 10 since 5 x 2 = 10, add those all together and it equals 30cm² and that’s how you work out the area of a shape.