Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6
Banner 7
Banner 8
Banner 9

Q.

Find the area of the shaded region in the following figure,

Question Image

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya

a

 28.45sq. cm

b

113.6sq. cm

c

59.8sq. cm

d

103.5sq. cm 

answer is D.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

Detailed Solution

detailed_solution_thumbnail
Question Image

Given,
Circle’s Diameter D=14 cm

Thus, its radius, r=142=7 cm 

Square’s side a=4 cm
Quadrant angle, θ=π2
Now, the area of the circle can be given as
A=πr2

 A=227×(7)2  
A=154 cm2
Area of square part,
As=(a)2
As=(4)2
As=16 cm2
Now, the area of the quadrant part,
Aq=14πr2
 Aq=14×227×(7)2  
Aq=38.5 cm2

Now, from the figure, 

the side of the small shaded square = 7 cm - 5cm = 2cm.
Area of the square of the side which has a 2 cm side=2cm2=4cm2
Let the area of the shaded region is As

Thus,
As= area of circle - area of square - area of quadrant + area of the square of side 2 cm
As=154-16-38.5+4 As=103.5 cm2
Hence, option 103.5 cm2 is correct.

Watch 3-min video & get full concept clarity
score_test_img

courses

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!

best study material, now at your finger tips!

  • promsvg

    live classes

  • promsvg

    progress tracking

  • promsvg

    24x7 mentored guidance

  • promsvg

    study plan analysis

download the app

gplay
mentor

Download the App

gplay
whats app icon
personalised 1:1 online tutoring