The area of the sector formed by the 110 degree central angle is 50 units squared. What is the radius of this circle??
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Answer:
Area of the sector(A) is given by:
[tex]A = \pi r^2 \cdot \frac{\theta}{360^{\circ}}[/tex]
where,
r is the radius of the circle and [tex]\theta[/tex] is the central angle in degree.
As per the statement:
The area of the sector formed by the 110 degree central angle is 50 units squared.
⇒A = 50 units squared and [tex]\theta = 110^{\circ}[/tex]
Substitute these in [1] and use 3.14 for pi we have;
[tex]50 = 3.14 \cdot r^2 \cdot \frac{110}{360}[/tex]
⇒[tex]50 = 0.959444446r^2[/tex]
Divide both sides by 0.959444446 we get;
[tex]r^2 = 52.1134915[/tex]
⇒[tex]r = \sqrt{52.1134915}[/tex]
Simplify:
r ≈ 7.22 units
Therefore, the radius of this circle is, 7.22 units