sandy wrote:

If the lengths of two sides of a triangle are 5 and 9, respectively, which of the following could be the length of the third side of the triangle?

Indicate all such lengths.

A. 3

B. 5

C. 8

D. 15

Practice Questions

Question: 13

Page: 154

Difficulty: medium

IMPORTANT RULE: If two sides of a triangle have lengths A and B, then . . .

DIFFERENCE between A and B < length of third side < SUM of A and BSo, in this case we get: 9 - 5 < third side < 9 + 5

Simplify to get: 4 < third side < 14

Answer: B, C

Cheers,

Brent

_________________

Brent Hanneson – Creator of greenlighttestprep.com

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