The area of the regular octagon is 10.15 cm2.
what is the measure of the apothem, rounded to the nearest hundredth of a centimeter?
1.27 cm
1.75 cm
2.33 cm
2.54 cm

1. Consider the figure attached.

2. The octagon can be divided into 8 congruent (identical) isosceles triangles. One of them is AOB.

3. Area(triangle AOB)=10.15/8=1.27 (cm squared)

4. Area(triangle AOB) is also 1/2*MO*AB

so 1.27=1/2*MO*1.45
     MO== 1.75 (cm)

The answer would be 5< 6n