Question

Find the length of the side of:
i)a square if the perimeter is 32cm
ii)an equilateral triangle if the perimeter is 18cm
iii)a regular pentagon if the perimeter is 45cm.

Answer 1

Answer:

i) given perimeter=32=4a. (a is the side of square)

therefore a=8cm

ii)perimeter=18cm=3x. (y is the side of equilateral ∆)

therefore x = 6cm

iii) perimeter =45cm=5z. (z is the side of regular pentagon)

therefore z= 9cm

hope it helps:)))