Any help would be great thanks

Answer:
The area for the triangle is 16cm. For the square it's 48cm. In total, thats 64cm.
Step-by-step explanation:
8x6=48 [square]
4x8=32÷2=16 [triangle]
B=8 for traingle since its the same as the square and its height is 4 since you subtract the total height (10) and the squares height (6).
If you need for help feel free to ask.