Question

PLS HELP SHOW ALL YOUR WORKING OUT :D BRAINLIEST

Answer 1

Answer:

18.1 cm

Step-by-step explanation:

Work out CD

$\sqrt{16^{2}-7^{2} } = 14.38749457$ ⇒ Pythagoras Theorem

Use CD and AD to work out AC

$\sqrt{14.38749457^{2}+11^{2} } = 18.11077028$ ⇒ Pythagoras Theorem