Give an equilateral triangle with each side 9cm. Find the area of this triangle.

an equilateral triangle of side 12 has its conrner cut off to form a regular hexagon

a) what is the area of the corner cut off?

b) find the are of the 

An equilateral triangle with the measure of its side is 6 cm. The area of the triangle is \(\sqrt{m}\) \(cm^2\). Find m

Rotate an equilateral triangle inscribed in a circle 40 degrees clockwise and counterclockwise, as shown in the figure below. How many triangles are there in the figure?

Find the area of a circle with a radius of 2cm.

Answer: The area of a circle is: ............

the area of an equilateral triangle is \(8\sqrt{12}cm^2\)

What is the perimeter of the triangle

Circle O has diameters AB and CD perpendicular to each other. AM is any chord intersecting CB at N.I is the center of the circle inscribed in triangle AMB. Prove that M, I, D are collinear points

Find the area of the circle have the radius of 324,331m.

If an equilateral triangle,a square and a circle are drawn on a piece of paprer, what is the maximum number of their intersection?

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