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HYPOTENUSE

Hypotenuse

Definition Of Hypotenuse

Hypotenuse is the side opposite the right angle in a right triangle. It is the longest side of a right triangle.

Video Examples: Hypotenuse
 

Solved Example on Hypotenuse

Ques: If a = 3.9 and b = 5.2, find the measure of the hypotenuse in the right triangle.

Choices:

A. 16.5 units
B. 5.0 units
C. 8.5 units
D. 6.5 units 
Correct Answer: A

Solution:

Step 1: From the figure, a = 3.9 and b = 5.2. 
Step 2 :c2 = a2 + b2[Apply Pythagorean theorem.] 
Step 3: c2 = 3.92 + 5.22 [Substitute for a and b.] 
Step 4:c2 = 15.21 + 27.04 = 42.25  
[Apply exponents and simplify.] 
Step 5:   [Take square root of both sides and simplify.] 
Step 6: The measure of the hypotenuse, c = 6.5 units.

Quick Summary

  • The hypotenuse is the longest side of a right triangle.
  • It is opposite the right angle.
  • Its length can be calculated using the Pythagorean theorem.
\[ c = \sqrt{a^2 + b^2} \]

🍎 Teacher Insights

Use visual aids and real-world examples to illustrate the concept. Emphasize the relationship between the hypotenuse and the right angle. Provide practice problems with varying orientations of right triangles.

🎓 Prerequisites

  • Right Angle
  • Triangle
  • Pythagorean Theorem
  • Square Root

Check Your Knowledge

Q1: Which side is the hypotenuse in a right triangle?

Q2: If a=3 and b=4, what is the length of the hypotenuse?

Frequently Asked Questions

Q: How do I identify the hypotenuse?
A: The hypotenuse is always opposite the right angle, and it's the longest side.

Q: Can the hypotenuse be shorter than the other sides?
A: No, the hypotenuse is always the longest side in a right triangle.

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