Answer:
see explanation
Step-by-step explanation:
The perimeter is the sum of the 3 sides of the triangle.
Sum the sides and equate to 54, that is
3x + 4x + 5x = 54, that is
12x = 54 ( divide both sides by 12 )
x = 4.5
Thus
AB = 3x = 3 × 4.5 = 13.5 in
BC = 4x = 4 × 4.5 = 18 in
AC = 5x = 5 × 4.5 = 22.5 in
Answer:
10x+15
Step-by-step explanation:
5 x 2x=10x
5x3=15
Answer:
The angle in the box is always 50 and that other acute angle is 46
Hope this helps
Step-by-step explanation:
the answer is -3/2 and -11/2
