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Viktor [21]
3 years ago
12

A triangle has sides 42, 4x, and 2x−6. What is the possible range of x? ? < x < ?

Mathematics
1 answer:
natulia [17]3 years ago
7 0

Answer:

8\ units< x < 18\ units

Step-by-step explanation:

we know that

The <u>Triangle Inequality Theorem</u> states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

so

Applying the Theorem

case 1) 42+4x > 2x-6

4x-2x > -6-42

2x > -48

x > -24\ units

case 2) 42+(2x-6) >4x

42-6 >4x-2x

36 >2x

18 >x -----> rewrite

x

case 3) 4x+(2x-6) > 42

4x+2x > 42+6

6x > 48

x > 8\ units

therefore

8\ units< x < 18\ units

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