Question

How do you do this because it's complicated

Answer 1

FAM U JUST NEED TO BELIEVE JUST BELIEVE USE THE POWER OF DANK MEMES THEN YOUR DREAMS WONT BE DREAMS

Answer 2

The triangle is a 45-45-90 triangle whose legs are equal Therefore the other leg , which is also the side of the regular hexagon = 12 cm
The area of the whiole figure = area of triangle + area of the hexagon
= 1/2 * 12*12 + 6 * 1/2 * 12 * 6 sqrt3