Question

Please help me i need it it is a true or false

Answer 1

False

Explanation:

The three lengths does not make a triangle.

To see if three lengths make a triangle or not, use the formula:

`a^(2)+ b^(2)= c^(2)`

`c^(2)` is always the longest length the order of the other two numbers doesn't matter due to the associate proper of addition.

`5^(2)+7^(2) =12^(2)`

25+49=144

74≠144

False

Edit:

Only use this formula if you know the triangle is a right triangle. You can also simply add the two smaller side length together to check. If the two smaller length adds up smaller or equal to the longest length, then it is false.