Question

Find the area of a regular octagon whose sides measure 10cm each and apothem is 4 cm.

Answer 1

Answer:

200 cm

Step-by-step explanation:

Area of regular polygon =

2

perimeter×apothem

Perimeter = number of sides × side length = 5×10 =50 cm

So, Area =

2

50×4

Area = 200 cm

2

Answer 2

Answer:

area =200cm

2

Step-by-step explanation:

area of regular polygon =2

perimeter ×apothem

perimeter =number of sides × side length

=5×10=50

so,area =

2

50×4

area =200

2