Question

Help please?????? Which of the following could not be a value of x?
A. 10
B. 9
C. 10.5
D. 9.5

Answer 1

I think it's C

Answer 2

I do believe C would be incorrect...the triangle inequality theorem would state the length of any 2 sides must be greater than the length of the third

Answer 3

Or be equal like because it can also be a isosceles triangle

Answer 4

So if we were to check an option (say B)

B = 9

lets check the 3 rules:

A + B > C
A + C > B
B + C > A

lets check... let A = 18 and C = 9

18 + 9 > 9 yes
18 + 9 > 9 yes again
9 + 9 > 18 not quite...it is equal to 18 not greater than

So B would be your answer here

Answer 5

Thanks guys :))

Answer 6

Anytime :)