yes
Yes.
In the construction of an equilateral triangle using a straightedge and compass, you can prove that the segments are congruent by demonstrating that all sides of the triangle are created using the same radius of the compass. When you draw a circle with a center at one vertex and a radius equal to the distance to the next vertex, you ensure that each side is of equal length. Additionally, using the properties of circles, you can show that the angles formed at each vertex are congruent, reinforcing that all sides are equal, thus establishing the triangle's equilateral nature.
In our example, the area of the equilateral triangle is 1/6 of the area of the regular hexagon
True...
Using Pythagoras' theorem the height of the equilateral triangle works out as about 7 cm and so with the given dimensions it would appear to be quite difficult to work out the lateral area.
Yes.
the sum of the angles of a plane triangle is always 180° In an equilateral triangle, each of the angles is = Therefore, the angles of an equilateral triangle are 60°
Yes it can
By using Pythagoras' theorem
By using Pythagoras' theorem.
No, not normally
Equilateral triangles are also equiangular.
Place the dodecagons so that every third side of a dodecagon is adjacent to another. In the gaps that are formed insert four equilateral triangles so that these touch a pair of dodecagons. Finally, fill the gap between the triangles using a square.
True
true!! apex.
In our example, the area of the equilateral triangle is 1/6 of the area of the regular hexagon
Cutting the equilateral triangle in half results in two right triangles each with a base of length x/2, and angles of 30, 60, and 90 degrees. Using the lengths of sides of a 30-60-90 triangle it can be found that the height is (x/2)√(3), which is the same as the height of the equilateral triangle.So the height of the equilateral triangle is x√(3) / 2.