14. Which of the following groups of numbers could be the lengths of the sides of a right triangle?
Ⅰ. 1, 4, √(17)
Ⅱ. 4, 7, √(11)
Ⅲ. 4, 9, 6
(A) Ⅰonly
(B) Ⅰand Ⅱ only
(C) Ⅰand Ⅲ only
(D) Ⅱand Ⅲ only
(E) Ⅰ,Ⅱ, and Ⅲ
Answer: A
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Solution:
ReplyDeleteTo be sides of right angle triangle it has to follow the law of Pythagoras.
Ie.e sum of squares of 2 smaller sides should be equal to square of biggest side. This is followed by only case I.