Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
366 views
in Mensuration by (239k points)
closed by
A cow is tied to a peg at one corner of a square shaped grass field of side 20.5 m. The length of the rope is 10.5 m. What is the area (in m2) of the field in which the cow CANNOT graze? \(\left( {\text{Use} \ \pi = \frac{{22}}{7}} \right)\)
1. 333.625
2. 350
3. 86.625
4. 175

1 Answer

0 votes
by (237k points)
selected by
 
Best answer
Correct Answer - Option 1 : 333.625

Given:

Side of the square shaped grass field = 20.5 m

The length of the rope is 10.5 m

Concept Used:

Area of square = Side2

Area of sector = θ/360 × πr2

Calculation:

Area of square grass field = 20.52 = 420.25 m2

Area of sector in which cow can gaze = 90/360 × πr2 = 90/360 × 22/7 × 10.52 = 86.625

∴ Area in which cow can not gaze = 420.25 - 86.625 = 333.625 m2

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...