Classify the triangle based on side lengths 5, 7 and 8.
a. right
b. acute
c. obtuse
d. no triangle can be formed with given side lengths

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

What is the y-intercept of the line given by the equation

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?