Question

In a rectangle ABCD of 3 mx 4 m, starting from A and D, along the sides
AB and DC after every 30 cm, a square shape of 10 cm is taken out as
shown below. What will be the perimeter (in cm) of the resultant shape?
30 cm
30 cm
10 cm
10 cm
3m
10 cm
10 cm
4m
D 30 cm
30 cm

Answer 1

Answer:

12 CM and 300 CM is the answer

Answer 2

Given : In a rectangle ABCD of 3 mx 4 m, starting from A and D, along the sides  AB and DC after every 30 cm, a square shape of 10 cm is taken out

To Find : What will be the perimeter (in cm) of the resultant shape

Solution:

Perimeter of original square = 2 (3 + 4) = 14 m

= 1400 cm

For each square cut increase in perimeter = 2 * 10 = 20 cm  ( two vertical lines of square )

for every 40 cm ,  1 square is cut

hence 7 square are cut from 300 cm each side

so increase in perimeter = 2 * 7 *  20

=  280 cm

Resultant perimeter = 1400 + 280  = 1680 cm

Learn More:

a rectangular piece of 15 cm *10cm is cut from the metallic sheet ...

https://brainly.in/question/2264229

Swati cuts out three SEMI-CIRCULAR pieces of radius 5 cm from a ...

https://brainly.in/question/14464236