Question

I need help with this work sheet someone helped me with some of the stuff but i need help plugging in the values to these
A) use Pythagorean Theorem:
d^2=a^2 + b^2
B) A= a*c
C) V=1/2 * a*b*c
D) surface area = sum of all surfaces:
2(1/2 ac)+dc+ac+bc

Please help me