Answer:
See below.
Step-by-step explanation:
It transforms to the Pythagoras theorem.
c^2 = a^2 + b^2 - 2ab cos C
If C = 90, cos C = zero so the last term disappears.
c^2 = a^2 + b^2 - 2ab * 0
c^2 = a^2 + b^2.
Answer:
b. x+y=18
20x+25y=400
Step-by-step explanation:
23*10*8=1840
1840 cubic units
D because none of the other statments are correct and it's the only one that lines up with the data.
