Home
Class 11
MATHS
A man starts his morning walk at a point...

A man starts his morning walk at a point A reaches two points B and C and finally back to A such that `/_A=60^(@)` and `/_B=45^(@),AC=4km` in the `DeltaABC`. Find the total distance he covered during his morning walk.

Text Solution

Verified by Experts

The correct Answer is:
`2sqrt(6)+4(sqrt(3)+2)km`
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRY

    NCERT TAMIL|Exercise EXERCISE 3.11|5 Videos

  • TRIGONOMETRY

    NCERT TAMIL|Exercise EXERCISE 3.12|20 Videos

  • TRIGONOMETRY

    NCERT TAMIL|Exercise EXERCISE 3.9|3 Videos

  • TRIGONOMETRIC FUNCTIONS

    NCERT TAMIL|Exercise MISCELLANEOUS EXAMPLES|10 Videos

  • TWO DIMENSIONAL ANALYTICAL GEOMETRY

    NCERT TAMIL|Exercise EXERCISE 6.5 (Choose the correct or more suitable answer)|25 Videos

Similar Questions

Explore conceptually related problems

A man starts his morning walk at a point A reaches two points B and C and finally back to A such that angleA = 60^(@) and angleB = 45^(@), AC = 4 km in Delta ABC. Find the total distance he covered during his morning walk.

A swimmer wishes to cross a 500 m wide river flowing at 5 km/h. His speed with respect to water is 3 km/h. Consider the situation of the previous problem. The man has to reach the other shore at the point directly opposite to his starting point. If the reaches the other shore somewhere else, he has to walk down to this point. Find the minimum distance that he has to walk.

A man starts from the point P(-3,4) and reaches the point Q(0,1) touching the x-axis at R(alpha,0) such that P R+R Q is minimum. Then 5|alpha| (A) 3 (B) 5 (C) 4 (D) 2

A 1.5 m tall boy is looking at the top of a temple which is 30 meter in height from a point at certain distance. The angle of elevation from his eye to the top of the crown of the temple increases from 30^(@) to 60^(@) as he walks towards the temple. Find the distance he walked towards the temple.

A particle starts with an initial velocity 2.5 m/s along the positive x direction and it accelerates uniformly at the rate 0.50 m/s^2 . A. Find the distance travelled by it in the first two seconds. b.How much time does it take to reach the velocity 7.5 m/s ? c. How much distance will it cover in reaching the velocity 7.5 m/s?

A man starts from a point Aand walks 5km straight ,then turns left at an angle of 60^o further walks 4km in this direction and reaches B.Find how far B is from A.

An old person moves on a semi circulasr track of radius 40.0 m during a moirning walk. If he starts at one end of the track and reaches at the other end, find the distance covered and the displacement of the person.

A man can swim in still water ast a speed of 3 km/h. He wants to cross a river that flows at 2 km/h and reach the point directly oposite to his starting point. A. In which diretionshoeld he try to swim (that is, find the angle his body makes wilth the river flow)? b. How much time will he take to cross the river if the river is 500 m wide?