Math, asked by ksingh1, 1 year ago

plzzz answer this question too hard for me

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Answered by danoct2004
1

Solution -

Area of a triangle = 1/2 * b * h

As it is an isosceles right triangle, b = h 

Therefore, Area = 1/2 * b * b = 1/2 * b^2

200 = 1/2 * b^2

b^2 = 400

b = 20 cm

Therefore, b = h = 20 cm

Perimeter of a triangle = b + h + sqrt (b^2 + h^2)
                                   
                                       = 20 + 20 + sqrt ((20)^2 + (20)^2)
      
                                       = 40 + sqrt(400 + 400)
                        
                                       = 40 + sqrt(800)
          
                                       = 40 + 20 sqrt 2 cm
                                 
                                       = 40 + 20 * 1.414     (as sqrt 2 = 1.414)
                   
                                       = 68.28 cm

Answer - Perimeter of an isosceles right triangle = 68.28 cm


ksingh1: no
ksingh1: wrong
ksingh1: sryyyy it is correct answer
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