Class 9

Heron’s Formula question bank (Maths)

Practice 135 free Class 9 Maths - Heron’s Formula questions with answers and step-by-step solutions.

Q1.

The perimeter of an equilateral triangle is $60 \, m$. The area is

(A)
$10 \sqrt{3} \, m^{2}$
(B)
$15 \sqrt{3} \, m^{2}$
(C)
$100 \sqrt{3} \, m^{2}$
(D)
$20 \sqrt{3} \, m^{2}$
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Q2.

The area of an equilateral triangle with side $2 \sqrt{3} \, cm$ is (in $cm^2$):

(A)
$5.196$
(B)
$0.866$
(C)
$3.496$
(D)
$1.732$
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