Question

In the following figure BCDE is a square . (a) Find the length of one side of the square
(b) Find the area of the square
(c)What is the perimeter of the square

Answer 1

Answer:

(a)5√2cm

(b)50cm²

(c)20√2cm

Step-by-step explanation:

(a) In ∆ABE:–

. BE/AE=sin45°

. BE/10=1/√2

. BE/10=1/√2×√2/√2

. BE=√2/2×10

. BE=5√2cm

. BE=Side of square BCDE=5√2cm

(b) Area of square BCDE=(side of square BCDE)²

. =(5√2)²

. =50cm²

(c) Perimeter of square BCDE=4×(Side of square BCDE)

. =4×(5√2)

. =20√2cm

Answer 2

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