Question

 A piece of wire is 144 cm long. Whatwill be the length of each side if the wire
is used to form

a) a regular octagon.

Q.no 2
A piece of wire is 144 cm long. What
will be the length of each side if the wire
is used to form:
a) a rectangle having breadth 34 cm.
b) a regular octagon.​

Answer 1

Answer:

your solution, hope you get the answer

Answer 2

Given : A piece of wire is 144 cm long

the wire is used to form:

a) a rectangle having breadth 34 cm.

b) a regular octagon.​

To Find : length of each side

Solution:

Perimeter of rectangle = 2 ( l + b)

l = length

b = breadth  = 34 cm

Perimeter = wire length  = 144 cm

=> 2( l + 34) = 144

=> l + 34 = 72

=> l = 38

Length of rectangle  = 38 cm

Side of octagon = a

Perimeter of octagon = 8a

8a  = 144

=> a  = 18  

Length of each side of octagon = 18 cm

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