Find the area of shaded region if radius of circle is 2.5 cm and length and breadth of rectangle is 4 cm and 3 cm respectively .
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Answers
AnSwer -:
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Area of whole figure -: 31.625 cm²
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Explanation-:
☆ Area of circle -:
"A = π r² "
A = Area
π = 22/7 or 3.14
r = radius
☆ Area of rectangle -:
"A= l x b"
A = Area
l= length
b = breadth
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Given ,
Radius of a circle -: 2.5 cm
length of rectangle-: 4 cm
breadth of rectangle-: 3 cm
To find ,
Area of whole figure [Area of circle +Area of rectangle]
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Solution-:
☆ Area of circle -:
"A = π r² "
"A = π r² "A = Area = ??
π = 22/7 or 3.14
π = 22/7 or 3.14r = radius = 2.5 cm
》22/7 x 2.5 x 2.5
》22/7 x 6.25
》3.14 x 6.25
= 19.625 cm²
Now,
☆ Area of circle-: 19.625 cm²
☆ Area of rectangle -:
☆ Area of rectangle -:"A= l x b"
☆ Area of rectangle -:"A= l x b"A = Area= ??
l= length = 4 cm
b = breadth = 3 cm
》3 x 4
》12 cm²
Now ,
☆ Area of rectangle-: 12 cm²
Now ,
☆ Area of whole figure-:
Area of circle + Area of rectangle
Area of circle = 19.625 cm²
Area if Rectangle= 12 cm²
Now ,
》 19.625 + 12
》31.625 cm²
Hence,
Area of whole figure -: 31.625 cm²
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Let's explore..............
Rectangle-: A rectangle is a type of quadrilateral whose parallel
sides are equal in length .
Circle-: A circle is a round - shaped figure which has no corners
and no vertices .
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Area of the shaded region
= 32.625 cm square