Use Pythagorean theorem
a^2 + b^2 = c^2
Other words, lengths of the shortest sides squared are equal to the longest squared
a^2 + 9^2 = 15^2
a^2 + 81 = 225
a^2 = 144
a = squareroot of 144
a = 12
Solution: a = 12
They are the same in different forms
A sum means adding, so we will just pick three different ways to add to 1.
1.
1/8 + 7/8 = 1
2.
3/8 + 5/8 = 1
3.
4/8 + 4/8 = 1
Answer:
864 squared
Step-by-step explanation:
Eleven is 10 and twelve is A, D, and E.
