Question

1. Measure the length and breadth of following and calculate its perimeter and area

1. Maths ncert textbook
from class 7th
length is 28.6 cm
breadth is 12 cm​

Answer 1

Answer:

Area of the book = 343.2 cm²

and Perimeter of the book = 81.2 cm

Step-by-step explanation:

Given, l = 28.6cm

      &  b = 12cm

=> perimeter of the rectangular book = 2(l+b) units = 2(28.6+12) cm

                                                                                    = 2(40.6)  cm

                                                                                    = 81.2  cm

also,

=> Area of the rectanglular book = l*b sq.units  = 28.6  *  12 cm²

                                                                              = 343.2 cm²