Question

pls tell with full method​

Answer 1

Answer:

179 metre square

Step-by-step explanation:

in a regular octagon all sides are equal (7m)

area of trapezium=a+b÷2×h

a=length of one side

b=length of other side

h=height

=12+7÷2×5

=47.5metre square

there are 2 trapezium so 47.5+47.5=95metre square

area of rectangle ADEH= 12×7=84metre square

so area of this regular octagon=95+84=179 metre square