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gulaghasi [49]
2 years ago
6

#5 In *triangle* ABC, AB = 9 and BC = 15. What is the range the possible lengths for CA? Why?

Mathematics
1 answer:
Naddika [18.5K]2 years ago
5 0
CA must be in the range [15 - 9, 15 + 9] = [6, 24]
For the line segments to form a triangle the length of CA cannot be less the the difference between the other sides or greater than their sum.
At either extreme the three points A, B and C will be co-linear thus forming a triangle with area of zero
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Step 1: Add -4x to both sides.

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Step 2: Divide both sides by 3.

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Step 2: Divide both sides by 3.

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