Question

ABCD is a square. Length of one diagonal is 5cm. a) What is the length of AB b) Find the perimeter of ABCD c) Find the area of ABCD

Answer 1

Answer:

a) AB = 5 cm

b) perimeter of square is 4a

= 4(5)

20 cm

c) area of square is side×side

= 5×5

25 cm²

(sides of a square are equal)

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Answer 2

Answer:

(a) length of ab is 5cm

(b) perimetre is 20cm

(c) area is 25cm

Step-by-step explanation:

(a) Length of diagonal is equal to length of side of square according to property of square

(b) perimetre of Square = 4l

                                       =4×5 = 20 cm

(c) Area of Square = s²

                              = 5²

                               =25 cm