Question

The perimeter of a regular octagon, with each side measuring 15 cm is -

• A. (15 x 8) cm
• B. 15 cm + 15 cm + 15 cm +.......... 8 times
• C. 120 cm
• D. All the above

Answer 1

The correct option is C

120 cm

Perimeter = sum of all sides
Since it is a regular octagon, all sides are equal.
$\therefore$ Perimeter = 8 $\times$ length of a side
= 8 $\times$ 15 cm
= 120 cm