Find the area of the minor segment of a circle of radius 14 cm when its central angle is 60°. Also find the
area of the corresponding major segment.
Answers
Answer:
616/12
Step-by-step explanation:
r=14cm
minor segment =ø/360×πr²
60/360×22/7×14×14
=616/12
Answer:
area of minor segment=area of minor sector-area of triangle
in the triangle
the central angle=60
so by angle sum property the other two angles will also be equal to 60 each
so as all the angles of the triangle are equal to 60 the triangle is an equilateral triangle.
so area of the triangle will be = √3/4 a² where a=radius of the circle
so area of triangle=√3/4 *14*14=49√3cm² or 84.87cm²
area of minor sector=θ/360*πr²
=60/360*22/7*14*14
=22*49/3
=359.33cm²
area of minor segment=area of minor sector-area of triangle
=359.33cm²-84.87cm²
=274.46cm²
area of major segment=area of circle-area of minor segment
area of circle=πr²
=22/7*14*14
=22*28
=616cm²
area of major segment=area of circle-area of minor segment
=616cm²-274.46cm²
=341.54cm²
therefore the area of the minor segment =274.46cm²
and
area of major segment=341.54cm²
hope it helps