SSC CPO SI and ASI Model Paper 1

Question : 134 of 200

Marks: +1, -0

What is the area of an equilateral triangle with altitude $10 √3$ cm?

Solution:

(2) Let the length of sides be a cm.
Altitude is,

{√3/2a= 10 √3}

,
a = 20 cm
So, the area is, A =

√3 /4(20^2) = 100 √3 cm^2

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