RS Aggarwal & V Aggarwal - Mathematics

Book: RS Aggarwal & V Aggarwal - Mathematics

Chapter: 7. Areas

Subject: Mathematics - Class 9th

Q. No. 18 of CCE Questions

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18

For an isosceles right angles triangle having each of equal sides ‘a’ , we have

I. Area =a2


II. Perimeter = (2 +)a


III. Hypotenuse = 2a


Which of the following is true?

We know that,

Area of triangle =


=


=


Now, Hypotenuse =


=


=


Perimeter = a + a +


= 2a +


= a (2 + )


I and II are true


Hence, option (c) is correct

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