A room is 30 X 12 X 12. a spider is ont the middle of the
samller wall, 1 feet from the top, and a fly is ont he
middle of the opposite wall 1 feet from the bottom. what is
the min distance reqd for the spider to crawl to the fly.
- 4 Answers
- 13046 Views
- Cadence, I also Faced
- E-Mail Answers
Answer Posted / sarathchand
h=30; b=12; h=12;
..............
| " |
| |
| | 12
| |
| " |
|..............|
30
Apply Geometry to get the minimum distance.
Mid-point [A] of side wall is at 6.
Spider [B] is at 5 from Mid-point of side wall (or) 11 from bottom (or) 1 form top.
Center point [C] of box is 15 away form the mid-point of side wall.
Then ABC is a right angled triangle.
Sides AB=5; AC=15;
Angle at A=90 degrees
BC=((AB^2)+(AC^2))^1/2
BC=15.811
Similarly,
Mid-point[D] of ooposite sidewall is at 6.
Fly [E] is at 5 from Mid-point of opposite side wall (or) 11 from top (or) 1 form bottom.
Center point [C] of box is 15 away form the mid-point of opposite side wall.
Then DEC is a right angled triangle.
Sides DE=5; DC=15;
Angle at D=90 degrees
CE=((DE^2)+(DC^2))^1/2
CE=15.811
Shortest distance from B(Spider) to E(Fly)
BE = BC + CE
BE = 31.622
| Is This Answer Correct ? | 5 Yes | 2 No |
Post New Answer View All Answers
9/10 or 10/11 which is greater.
Dr. Martin A. Tidball, along with colleagues at two universities, are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion. are working hard to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhance facilitated diffusion with the help of a drug is working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug is working to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhancing facilitated diffusion with the help of a drug are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion
Sita bought a handbag for Rs. 144 and got a percentage of profit equal to the cost price of the handbag. What is the cost price of the handbag?
the matrix of a(7,9) was given.the address of the first byte of a(1,1)=1258.it takes 4 bytes to store the nuymber. then calculate the address of the last byte of a(5,8)
A person was fined for exceeding the speed limit by 10 km/hr. Another person was also fined for exceeding the same speed limit by twice the same. If the second person was traveling at a speed of 35km/hr,find the speed limit?
What would be the rank of the word LABOUR in the dictionary if all the possible permutations of the alphabets of LABOUR are done?
some people went for vaction. unfortunately it rained for 13 days when they were there. but whenever it rained in the morning, they had clean afternood and vice versa. In all they enjoyed 11 morning and 12 afternoons. how many days did they stay there totally
What is the height of the cone of diameter 12 cm that is formed after melting a sphere of 6 cm diameter?
f(X)= 2X-1 + f(X-1) if X is not equal to zeroandiff(X=0)=0, Value of f(5)
Fallin height is proportional to square of the time. One object falls 64 cm in 2 sec. than in 6 sec. from how much height the object will fall?
A batsman outs for 23 runs in one inning, which increases his average 15 to 16. If he has to get 18 as average, what score is to make by him in the same innings?
two friends A,B are running up hill and then to get down! length if road is 440 yards A on his return journy met B goin up at 20 yards from top,A has finished the rase .5 Minuit earlier than B,then how much time A had taken to complete the rase.
What is the attitude
Two glasses were filled with 1/3 and 1/4 milk. they were filled with water &then mixed in tumbler. what is the percentage of milk in the resultant.
FIND the next number in the series 11,112,1124,11248,--
