# Equilateral 2543

a) The perimeter of the equilateral triangle ABC is 63 cm. Calculate the side sizes of the triangle and its height.

b) A right isosceles triangle has an area of 40.5 square meters. How big is his circuit?

c) Calculate the square's area if the diagonal's size is 15 cm.

b) A right isosceles triangle has an area of 40.5 square meters. How big is his circuit?

c) Calculate the square's area if the diagonal's size is 15 cm.

### Correct answer:

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Calculation of an isosceles triangle.

Calculation of an equilateral triangle.

See also our trigonometric triangle calculator.

Calculation of an isosceles triangle.

Calculation of an equilateral triangle.

See also our trigonometric triangle calculator.

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