Question

Help PLS!! WILL FAN AND MEDAL

Answer 1

@igreen

Answer 2

@ryry344691

Answer 3

@marriiee97

Answer 4

Theorem: If 2 sides of one triangle are congruent to two sides or another triangle and the third side of the first triangle is less than the third side of the second triangle, then the included angle of the first triangle is less than the included angle of the second triangle.

Answer 5

What all that means is that 3x - 15 < 66

Answer 6

3x - 15 < 66
3x < 81
x < 27

Answer 7

That's not all. The instruction remind that the angle 3x -15 must be positive.
So, 3x - 15 > 0
3x > 15
x > 5

Putting that together with x < 27

the values of x can range between 5 and 27.

Write that as: 5 < x < 27. Do check it. @bucsfan323

Answer 8

Note: The theorem cited above is known as the SSS Inequality Theorem.
Read more about it here:

http://hotmath.com/hotmath_help/topics/SSS-inequality.html

@bucsfan323