Area
= 3 cm
5x/4-2=3x/2-4 is true
5x/4 -2=6x/4-4
5x/4+2=6x/4
-5x/4
2=x/4
x=8
Answer:
A
Step-by-step explanation:
6.71
You use pythagoras so you do:
6² + 3² = 45
square root 45 =6.71