Question

Can you help me with this?

Answer 1

Answer:

11.2 cm

Step-by-step explanation:

By Pythagoras Theorem:

Length of diagonal

$= \sqrt{ {10}^{2} + {5}^{2} } \\ \\ = \sqrt{100 + 25} \\ \\ = \sqrt{125} \\ \\ = 11.1803399 \\ \\ \approx 11.2 \: cm$

Answer 2

Answer:

11

Step-by-step explanation:

apply pythagoras theorem