Question

Help me please please​

Answer 1

The length of adjacent is 6.22cm

Explanation:

You have to apply Pythagoras Theorem' :

`{a}^(2) + {b}^(2) = {c}^(2)`

`let \: b = 6.5 \\ let \: c = 9`

`{a}^(2) + {6.5}^(2) = {9}^(2)`

`{a}^(2) + 42.25 = 81`

`{a}^(2) = 38.75`

`a = √(38.75)`

`a = 6.22`

Answer 2

6.22cm

Explanation:

see the attachment.