Question

a rectangular picture frame is 10.5 cm long and 9cm wide.find the length of the wooden strip required to make 5 such frames ?​

Answer 1

Answer:

we need the perimeter first and then we have to multiply it by 5 so we get the total length

here is how we do it

L=10.5cm B=9cm

so total length of 1 frame is 2(L+B)

=>2(10.5+9)=39cm

so total length needed is 5×(39)=195cm is yoir answer