Pythagorean Theorem Solving for All Three Sides

Which equation can be used to solve for "x"?

• 15² – x² = 21²

• x² – 15² = 21²

• 15² + 21² = x²

• 21² – 15² = x²

The Pythagorean Theorem is ​ (a)   (b)   ​ (c)   ​ (d)   ​ ​ (e)  

Tags

8.7.C

What is the final step in solving this work for c?
a² + b² = c²
3² + 4² = c²
9 + 16 = c²
25 = c²

• Divide both sides by 2

• Take the square root of both sides

_{^{Find the missing side}}

• 9

• 41

• 6.4

• 3

Find the length of the missing side. 

• 48 in.

• 52 in.

• 16 in.

• 24 in.

Find the value of x. Round to the nearest tenth.

Mathematical Equivalence

ON

Solve for the length indicated.

• 1

• 2

• 3

• 4

Find the value of x. Round to the nearest tenth.

Mathematical Equivalence

ON

• +
• 49
• 65
• -

Find the missing length indicated. Leave your answer in simplest radical form.

• 64

• 12

• 9

• 100