Question

this question is from Pythagoras thoerm Qno7

Answer 1

Hey.....

Let ABCD be rectangle.
Then AC will be diagonal. And angle B = 90.
Length(BC) = 40 cm
diagonal(AB) = 41 cm
By using pythagoras theorem, we have:-

Now,

Perimeter of rectangle = 2(L+B) = 2(BC+ AB)
                                         = 2(9 + 40) = 2(49)
                                         = 98 cm

Answer 2

HEYA!!
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✨Refer to the attachment for the figure ✨
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Applying Pythagoras theorem ,

Hypotenuse ^2 = Base^2 + Perpendicular ^ 2

(41)^2 = (40)^2 + Perpendicular ^2


1681 = 1600 + (p)^2

1681 - 1600 = (p)^2

P^2 = 81

P^2 = (9)^2

Perpendicular = 9 cm .

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〰Perimeter of a rectangle = 2 × ( l + B )

= 2 × ( 40 + 9)

= 2 × 49

= 98 cm.

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