A circle has been dissected into 16 congruent sectors. The base of one sector is 1.56 units, and its height is 3.92 units. Using the area of a triangle formula, what is the approximate area of the circle?

A circle has been dissected into 16 congruent sectors The base of one sector is 156 units and its height is 392 units Using the area of a triangle formula what class=

Respuesta :

ANSWER

[tex]48.92\text{ square units}[/tex]

EXPLANATION

Each dissected section of the circle can be said to be a triangle.

This implies that the approximate area of the circle is the area of the 16 dissected sectors.

To find the area of one dissected sector, apply the formula for the area of a triangle:

[tex]A=\frac{1}{2}*b*h[/tex]

where b = base length

h = height

Hence, the area of one triangle is:

[tex]\begin{gathered} A=\frac{1}{2}*1.56*3.92 \\ \\ A=3.0576\text{ square units} \end{gathered}[/tex]

Therefore, the approximate area of the circle is:

[tex]\begin{gathered} A=16*3.0576 \\ A=48.92\text{ square units} \end{gathered}[/tex]

That is the answer.