Question

Which of the following are sides of a right triangle a. 4,4,8 b. 2,3,4 c. √13,3,2 d. other ________
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Answer 1

Answer:

Sum of squares of two sides should be equal to square of third side .

Trial and Error method

a) 4² + 4² = 8²

16 + 16 = 64

32 not equal to 64

b ) 2² + 3² = 4²

4 + 9 = 16

13 not equal to 16

.c) √13² = 3² + 2²

13 = 9 + 4

13 = 13

so the correct option is C

Answer 2

By Pythagorean theorem (hypotonic)^2= sum of squares of other two sides
So 13=9+4
Option c is correct