Question

Find the area of the triangle with sides 21 cm, 16 cm and 13 cm. Also, find the perimeter of an equilateral
triangle equal in area to this triangle​

Answer 1

Step-by-step explanation:

The perimeter of equilateral is 46.77 cm. Step-by-step explanation: Sides of triangle : a = 21 cm. b = 16 cm. c = 13 cm. Area of triangle = Where. Substitute the values : Area = Area of equilateral triangle =.

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Answer 2

Answer :-

Refer to the attachment