RS Aggarwal & V Aggarwal - Mathematics

Book: RS Aggarwal & V Aggarwal - Mathematics

Chapter: 7. Areas

Subject: Mathematics - Class 9th

Q. No. 3 of Formative Assessment (Unit Test)

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3

For an isosceles triangle having base = 12 cm and each of the equal sides equal to 10 cm, the height is

Let us assume ABC be an isosceles triangle having,

Base, AC = 12 cm


AB = AC = 10 cm


BD =


=


= 6 cm


We know that,


In right angled triangle, ABC


AD =


=


=


=


= 8 cm


Thus, height of the triangle is 8 cm


Hence, option (d) is correct

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