find the area of an equilateral triangle with perimeter equal to 18 cm and altitude measuring 4 cm .
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Answered by
18
Heya,
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
Hope this helps.....:)
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
Hope this helps.....:)
Chaurasiya1:
right answer
:-)
Answered by
2
Perimeter=4a
18=4a
18/4=a
9/2=a
Area of equilateral triangle=√3/4×9/2=9√3/8
18=4a
18/4=a
9/2=a
Area of equilateral triangle=√3/4×9/2=9√3/8
Sorry My mistake I
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