Math, asked by preetipatelpp6237591, 2 months ago

Draw four rectangles of different sizes each having a perimeter of 16 cm.
How many envelopes of size 15 cm x 20 cm can be made out of a paper of
size 4 mx 6 m? Find the area of the top of your study table. Define area and
perimeter of a rectangle and square. Trace shapes of a small plate on the
graph paper and find its area. Take two threads of 24 cm use that thread for
making a square and an equilateral triangle on the assignment page now
measure the length of each side of square and the equilateral triangle.​

Answers

Answered by lalithamlalitham4028
4

Answer:

16 is the correct answer , Please mark me as brainliest

Step-by-step explanation:

Four rectangles of different sizes each having perimeter of 16 cm:

Perimeter of rectangle = 2(l + b)

              l = length of rectangle

             b = breadth of rectangle

2(l + b) = 16

        l + b = 16/2 ⇒ l + b = 8 cm

Hence, we can draw any number of rectangles whose length and breadth sum up to 8 cm.Case 1:    l = 7 cm, b =  1 cm

           Perimeter of rectangle = 2(1 + 7)

                                                  = 2(8)

                                                  = 16 cm

Case 2:  l = 6 cm,  b = 2 cm

        Perimeter of rectangle = 2(6 + 2)

                                               = 2(8)

                                               = 16 cm

Case 3:  l = 5 cm,  b = 3 cm

        Perimeter of rectangle = 2(5 + 3)

                                               = 2(8)

                                               = 16 cm

Case 4:  l = 5.5 cm,  b = 2.5 cm

        Perimeter of rectangle = 2(5.5 + 2.5)

                                               = 2(8)

                                               = 16 cm

 

Similar questions