Given a perimeter of 18 units, the resulting altitude is 5.2 (5.19615) units.
With an altitude of 10 units, this triangle's sides each measure 11.55 (11.54701) units.
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°
60 degrees
120 degrees.
You can find it by using the Pythagorean theorem if you know the side and the base of triangle. In an isosceles triangle the median is also the altitude. The formula is: (The measure of the side length)^2 - (The measure of the one half of the base length )^2 = (The measure of the altitude)^2. Find the square root of the result that you'll have the measure of the altitude.
18 inches and it is an equilateral triangle
An equilateral triangle has three sides of the same length. Therefore, the length of each side of an equilateral triangle with a perimeter of 63 metres is equal to 63/3 = 21 metres.
If the triangle is equilateral, you don't have a problem, but if not you have to measure the sides.
It is: 3*7.5 = 22.5 cm which is the perimeter of the equilateral triangle
3*15 = 45 units.
22.5 cm
39*3 = 117 units
With an altitude of 10 units, this triangle's sides each measure 11.55 (11.54701) units.
The perimeter of an equilateral triangle with a side length of 4 inches is 12 inches. Each side of an equilateral triangle is equal in length, so the perimeter is found by multiplying the side length (4 inches) by 3.
The perimeter is 22.5 centimeters.
9.794747317 m (with the help of Pythagoras' theorem)
The formula for the perimeter of an equilateral triangle is P = 3s, where P is the perimeter and s is the length of one side. The formula for the area of an equilateral triangle is A = (s^2 * sqrt(3)) / 4, where A is the area and s is the length of one side.