Which of the following rules should be use to find the area of a triangle?

A) Divide area by length

B) Divide the sum of the upper and lower sides by 2

C) Multiply length by width by height

D) Multiply 1/2 base by altitude

E) none of these​

Respuesta :

The area of a triangle is half the product of the base and the height.

Since multiplication is commutative, the following expressions are equivalent:

[tex]A=(bh)\cdot \dfrac{1}{2} = \dfrac{b}{2}\cdot h = \dfrac{h}{2}\cdot b[/tex]

So, option D is correct

Option (D) Multiply 1/2 base by altitude should be used to find the area of a triangle.

Area of the triangle

A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices. A triangle is also a polygon.

Area of a Triangle = A = ½ (b × h) square units

where b and h are the base and height of the triangle, respectively.

Now, let's see how to calculate the area of a triangle using the given formula.

The area of a triangle is half the product of the base and the height. Since multiplication is commutative, the following expressions are equivalent:

[tex]$A=(b h) \cdot \frac{1}{2}=\frac{b}{2} \cdot h=\frac{h}{2} \cdot b$[/tex]

So, option D is correct Multiply 1/2 base by altitude.

To know more about Area of the triangle refer to:

https://brainly.com/question/3264505

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