Radians are aAngles bDistances cBoth Problem 2 The sum of in

Radians are:

a.Angles

b.Distances

c.Both

Problem 2

The sum of interior angles of a closed polygon is equal to 180°:

a.Never

b.Always

c.Sometimes

Problem 3

Bearings are convertible to azimuths, and vice versa:

a.Never

b.Sometimes

c.Always

Problem 4

A zero azimuth points toward East:

a.Never

b.Sometimes

c.Always

Problem 5

Magnetic declination is:

a.Positive if astronomic North is to the right of compass North

b.Positive if astronomic North is to the left of compass North

c.Positive if astronomic North is negative

Problem 6

Calculate the interior angle for D in DMS. In the sketch below:

Calculate all the exterior angles in DMS.

Problem 7

In the figure above, if side DC has a bearing of S 19° 17’ 47” W, what are the bearings and azimuths of all sides (continuing going clockwise)?

Problem 8

Convert to sufficient number of decimal digits for angles (6):

a)119°40’59” to grads               

b)217.378863 grads to DMS   

c)57°15’16” to radians             

d)1 radian to DD and DMS      

inDMS E . in DMS. 222° 59\' 11\" C 25 do

Solution

solution-:

1) Radians are basically unit of an angle and used for measure angle.Hence option (a) iscorrect.

2) Polygon is a plane figure consist of atleast 3 straight line. When it consist of 3 straight line the plane figure is known as triangle, whose sum of internal angle is 180degrees. But when straight line is more the 3 then sum of interior angle will be (2n - 4)*90 ,where n is number of straight line.

Hence option (c) is correct.

3)Azimuth is measured from reference True North.and bearing are convertible to azimuth and vice versa.For example An azimuth of 135 degrees is conerted to the bearing as 45 degrees East of South (S 45 E).

Hence option (c) is correct.

4) Azimuth is measured from true north, zero azimuth means it points toward north.

Hence option (a) is correct.

5) Magnetic declination is positive if magnetic north (astronomic north) lies right side to true north(compass north).

Hence option (a) is correct.

NOTE-: As per the chegg policy ,experts are not allowed to answer more than 4-5 questions under one post,for remaining answers kindly post them again seperately.Thanks