Question

Find the sides marked with letters in questions 7 and 9 - all lengths are given in centimetres

Answer 1

Question 7. e is 7

Explanation:

Line AC=LINE AB+BC

Line AC=6+2

Line AC=8

Line CD=6

To find AD use the hypotenuse formula:A squared+B squared =C squared

Base*Base+Height*Height=Hypotenuse*Hypotenuse

Base:6

Height:8

8*8+6*6=Line AD squared

64+36=100

`√(x)100` is 10

Line AD is 10.To find e:10-Line ED[3]=7

The answer:7