As Randi started to solve for in the diagram at right, she wrote the equation 72 + x² = (x + 1)². a. Is Randi's equation valid?

Question

As Randi started to solve for in the diagram at right, she wrote the equation 72 + x² = (x + 1)².
a. Is Randi's equation valid? Explain your thinking.
Hint (a):
b. To solve her equation, first rewrite (x + 1)2 by multiplying (x + 1)(x + 1). You may want to review the Math Notes box for Lesson 2.2.2.
c. Now solve your equation for x.
Hint (c):
d. What is the perimeter of Randi's triangle?
✔Hint (d):
Use the value of x to determine the length of each side of the triangle.

Kunduz · Accepted Answer

Click to see the answer