What formula do you use to find the area of an equilateral triangle?

In general, the height of an equilateral triangle is equal to √3 / 2 times a side of the equilateral triangle. The area of an equilateral triangle is equal to 1/2 * √3s/ 2 * s = √3s2/4.

Which of the following has its area and perimeter numerically equal 2 points?

Answer: A) An equilateral triangle of side 1 cm. Hope it helps you!

What is the perimeter of 2cm triangle?

We know perimeter of a triangle is the total length (distance) of the boundary of a triangle. Perimeter of a triangle is the sum of lengths of its three sides. = 2 cm + 4 cm + 3 cm, (add the length of each side of the triangle).

How fo you find the perimeter of a triangle?

The perimeter of a triangle can be calculated by simply adding the length of all the sides. The basic formula to calculate the perimeter of a triangle with sides ‘a’, ‘b’, and ‘c’ is: a + b + c.

What has area and perimeter numerically equal?

The area of an equilateral triangle is numerically equal to its perimeter.

Which shape has its area and perimeter numerically equal?

two-dimensional equable shape (or perfect shape) is one whose area is numerically equal to its perimeter. For example, a right angled triangle with sides 5, 12 and 13 has area and perimeter both have a unitless numerical value of 30.

How to find the perimeter of a right triangle with two sides?

Finding the Perimeter of a Right Triangle When Two Sides are Known Remember what a right triangle is. Recall the Pythagorean Theorem. Look at your triangle, and label the sides “a,” “b,” and “c”. Enter the side lengths that you know into the Pythagorean Theorem. Solve the equation to find the missing side length.

How do you find the perimeter of a set of numbers?

Recall that the perimeter P = a + b + c. Now that you know the lengths of sides a, b and c, you simply need to add the lengths together to find the perimeter. In our first example, P = 3 + 4 + 5, or 12. In our second example, P = 6 + 8 + 10, or 24 . Do you have the perimeter and are missing one side?

What is the length of side a of an equilateral triangle?

In this example, the length of side a = 5, the length of side b = 5, and the length of side c = 5 . This particular example is called an equilateral triangle, because all three sides are of equal length. But remember that the perimeter formula is the same for any kind of triangle.

How do you find the missing side of a right triangle?

Take the square root of both sides. Simplify. It is important to note that we can only use the following formulas to solve for the missing side of a right triangle when two other sides are known: After we find the missing side, we can use the perimeter formula to calculate the triangle’s perimeter.