RS Aggarwal & V Aggarwal - Mathematics

Book: RS Aggarwal & V Aggarwal - Mathematics

Chapter: 7. Areas

Subject: Mathematics - Class 9th

Q. No. 8 of CCE Questions

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The height of an equilateral triangle is 6cm. Its area is –

It is given in the question that,

Height of an equilateral triangle = 6 cm

Let the side of triangle be a

Then, the altitude of the equilateral triangle is given as:

Put altitude = 6 cm we get,

a =

a = 4 cm

Area of triangle =



= 12 cm2

Hence, option (a) is correct

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