Which of the following sets of numbers can be the lengths of the sides of a triangle. A) 6.7.14
B) 7.9.16
C) 6.7.12
D) 7.8.16

C

You should make use of the Triangle Inequality Theorem, which states that

the sum of the lengths of two sides of a triangle must always be greater than the length of the third side

As you test the answers, you will notice that in C 7+11=18, which is also equal to the length of the other side. This is impossible so the answer is C.

Step-by-step explanation:

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

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