Question

Please PLEASE HELP me

Answer 1

It has to be the first one

Answer 2

Answer:

The answer is option 2.

Step-by-step explanation:

You can find it using Pythagoras Theorem' :

${c}^{2} = {a}^{2} + {b}^{2}$

Let a be 15 units,

Let b be 14 units,

${c}^{2} = {15}^{2} + {14}^{2}$

${c}^{2} = 421$

$c = \sqrt{421}$

$c = 20.5 \: units \: (3s.f)$