An equilateral triangle is cut up into smaller equilateral triangle with sides 1/3 of the original .The no.of triangle formed is
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Area of big triangle=√3/4A^2
Area of 1 small triangle=√3/4a^2=√3/4*(A/3)^2
No. of triangle*area of small triangle=Area of big triangle
=N*√3/4*A^2/9=√3/4*A^2
=N*1/9=1
=N=9 triangles
Therefore, number of triangles formed is 9.
Hope it helps.
Area of 1 small triangle=√3/4a^2=√3/4*(A/3)^2
No. of triangle*area of small triangle=Area of big triangle
=N*√3/4*A^2/9=√3/4*A^2
=N*1/9=1
=N=9 triangles
Therefore, number of triangles formed is 9.
Hope it helps.
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