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tatuchka [14]
3 years ago
5

A triangle has sides 45, 4x and 2x−4. What is the possible range of x?

Mathematics
1 answer:
Paul [167]3 years ago
8 0

Answer:

8 1/6 < x < 20.5.

Step-by-step explanation:

Use the Triangle Inequality Theorem which states that the sum of any 2 sides of a triangle is always greater that the third side.

So for triangle to be formed:

4x + 2x - 4 > 45

6x > 49

x > 8 1/6.

Also  2x - 4 + 45 > 4x

41 > 2x

2x < 41

x < 20.5.

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