# How do you find the base of a triangle?

## How do you find the base of a triangle?

The height of any object is how much it measures from its top to its bottom. How do you identify the base of a triangle? Any of the three sides of a triangle can be considered the base of the triangle.

### How do you find the height of a triangle without the base?

It’s using an equation called Heron’s formula that lets you calculate the area if given sides of the triangle. Then, once you know the area, you can use the basic equation to find out what is the altitude of a triangle: Heron’s formula: area = 0.25 * √((a + b + c) * (-a + b + c) * (a – b + c) * (a + b – c))

How do you find the area of a triangle with no sides?

We can find the scalene triangle’s area when the length of its two sides and the included angle are given.

1. When two sides b and c and included angle A is known, the area of the triangle is, Area = (1/2) bc × sin A.
2. When sides a and c and included angle B is known, the area of the triangle is, Area = (1/2) ac × sin B.

How do you calculate base?

Substitute the value of “r” into the equation for the area of a circle: area = πr^2. Note that π is the symbol for pi, which is approximately 3.14. For example, a circle with a radius of 3 cm would yield an equation like this: area = π3^2. Simply the equation to determine the area of the base.

## How do you find the height of a right triangle with only the base?

Triangle height, also referred to as its altitude, can be solved using a simple formula using the length of the base and the area. Thus, the height or altitude of a triangle h is equal to 2 times the area T divided by the length of base b.

### How do you find three sides of a triangle?

Proof of Area of Triangle with 3 Sides Formula Consider the triangle shown above with sides a, b, c, and the opposite angles to the sides as angle A, angle B, angle C. Using law of cosines, cos A = (b2 + c2 – a2) / 2bc.

What is the area of the base?

Rectangular Bases The area of a rectangle is equal to its length, l, multiplied by its width, w: A = l x w. Given a pyramid whose base is 10 inches long and 15 inches wide, find area as follows: A = 10 inches x 15 inches = 150 square inches.

How do you find the base area?

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