wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Find the area of an equilateral triangle having side 12 cm. [2 MARKS]

Open in App
Solution

Concept : 0.5 Mark
Application : 0.5 Mark
Calculation : 1 Mark

Since the triangle is equilateral, all the sides will be equal.

Therefore, semi perimeter of the triangle = a+b+c2=12+12+122=18 cm

Area of the triangle
= s(sa)(sb)(sc)=18(1812)(1812)(1812)=3888=62.35 cm2


flag
Suggest Corrections
thumbs-up
9
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Triangle Properties
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon