Question

find the area of an equilateral triangle , with perimeter equal to 18cm and altitude measuring 4 cm.​

Answer 1

According to the question,

Perimeter of triangle = 18cm

Altitude = 4 cm

As the triangle is equilateral triangle so, one side of triangle = 18/3

= 6 cm

Area of triangle = 1/2×base ×height

= 1/2×6×4

= 12 cm²

Therefore the area of equilateral triangle = 12 cm²

Answer 2

Answer:

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