SOLUTION: If x is an integer and 2 < x < 7, how many different triangle are there with sides of lengths 2,7 and x? This is a multiple choice question with the following answers One, Two,

Algebra.Com
Question 937012: If x is an integer and 2 < x < 7, how many different triangle are there with sides of lengths 2,7 and x?
This is a multiple choice question with the following answers
One, Two, Three, Four and Five.
The answer given was One.
But the way i understood is x could be of any value of the following 3, 4, 5 and 6. So I selected FOUR. Can you please help me on how the answer is One?

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

given:

Now, a triangle be such that the of sides be than the side.
So, immediately, we are down to , , , under given conditions.
If then --- not a triangle!
if then -- not a triangle
if then -- not a triangle
if x = 6 then --
so, value of works; so, answer is


RELATED QUESTIONS

Two sides if a triangle have lengths 4cm and 5 cm. The 3rd side has x cm, where x is a... (answered by rothauserc)
17 Let x, 3, and 6 be the lengths of three sides of a triangle. How many such triangles... (answered by Fombitz)
how many integer values of x are there so that x,5, and 8 could be the lengths of the... (answered by stanbon)
if two sides of a triangle are 4 and 3, how many different triangles are possible with... (answered by scott8148)
If 3, 8, and x represent the lengths of the sides of a triangle, how many integer values... (answered by Alan3354)
if x and y are positive numbers with x>y, show that a triangle with sides of lengths... (answered by richard1234)
if x and y are positive numbers with x>y, show that a triangle with sides of lengths... (answered by richard1234)
How many different triangles are there for which the lengths of the sides are 3, 8, and... (answered by alicealc)
the sides of a triangle are (x+2), (3x+1) and (x+7) units. find the units of x if the... (answered by ikleyn)