Question

Given side lengths 4 units, 8 units, and x units, determine the range in which x must lie in order for a triangle to exist.

A)
X > 12
B)
0 C)-4 D)
4

Answer 1

A is the correct answer

Explanation:

Mathematically if we have lengths a, b and c

For a triangle to occur, let us say that the third side is c

then a + b must be greater than or equal to c

Hence c must be equal to (4 + 8) or greater than (4 + 8)

With the options given , A is the correct answer