1 answer

How do you determine whether the given lengths are sides of a right triangle 20, 21, 29?

Question:

How do you determine whether the given lengths are sides of a right triangle 20, 21, 29?

Answers

These lengths are that of a right triangle.

Explanation:

The longest length for a right triangle is always the hypotenuse. So by applying Pythagoras #20^2+21^2 # should give the same value as #29^2# If this is not so then it is not a right triangle.

Consider #20^2+21^2# gives #841#

Now compare this to #29^2 =841#

#color(blue)("Conclusion: These lengths are that of a right triangle")#

.

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