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Gyaan Maths
CBSE · Class 6-12
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Back to Measuring Space: Perimeter and Area
Class 9 · Ganita Manjari · Unit 6: Measuring Space: Perimeter and Area
Special Cases
Lesson 2 of 3
For an equilateral of side
a
a
a
:
A
=
3
4
a
2
A = \tfrac{\sqrt 3}{4}a^2
A
=
4
3
a
2
. Derives from Heron.
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Heron's Formula
Next
Quadrilateral Area
All lessons in this unit
1. Heron's Formula
2. Special Cases
3. Quadrilateral Area