A horse is tied to a peg at one corner of a square shaped grass field of sides 15m by means of a 5m long rope.(a) What is the area of the grass field?(i) 225m2 (ii) 225m (iii) 255m2 (iv) 15m
(b) The area of that part of the field in which the horse can graze.
(i) 19.625m2 (ii) 19.265m2 (iii) 19m2 (iv) 78.5 m2
(c) The grazing area if the rope were 10m long instead of 5m.
(i) 7.85m2 (ii) 785m2 (iii) 225m2 (iv) 78.5 m2
(d) The increase in grazing area if the rope were 10m long instead of 5m.
(i) 58.758m2 (ii) 58.875m2 (iii) 58m2 (iv) 78.5 m2
(e) The given problem is based on which concept?
(i) Coordinate geometry (ii) area related to circle
(iii) Circle (iv) None of these
Answers
Answered by
6
Answer: a) i b) i c) iv d) ii e) ii
Step-by-step explanation:
a)Area of grass field=15²=225m²
b)Area of that part of the feild in which horse can graze= πr²/4=π*5²/4
=3.14*25/4=78.5/4
=19.625m²
c)grazing area if rope was 10m long=πr²/4=3.14*10²/4
=3.14*100/4=314/4
=78.5m²
d)increase in grazing area=78.5-19.625=58.875m²
e) area related to circle
Answered by
0
Answer:
(I) 25(3m+2n)(3m-2n) it is riley right answer
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