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Answer

tan30=x/10*3^1/2

x=10

hight of tower =10+2=12

Answer
tan(30)=1/√3 From his eye height of tower =10 m From ground 10 + height of person =12 m. Ans.B
Answer

Properly elaborated in image.

Answer

 

Basic:     tan of angle = opposite side / adjecent side ;  tan 30 = 1/ ( square root of 3) = 1 / (1.73)

Given man is 2 meter tall so  actual height will be 2m addition to obtained opposite side X.

Given adjecent side is 10 * (square root of 3) 10 * 1.73

Now tan angle is     ===> X / ( 10 * 1.73) = 1 / 1.73

                               ===> X * 1.73 / 10 * 1.73 = 1

                               ===> X = 10 m ( obtained opposite side )

therefore Actual height is X + 2 = 10 + 2 = 12 meter.

Answer

tan 30 = 1/√3 = t/10√3 gives t = 10 m

so the total height of the tower = 10 + 2 = 12 m

Correct option is B

Answer

Tan 30 = P/B = X/ 10 ROOT 3, So, x = 10 Height of tower = 10 + height of man = 10+2 = 12

Answer
B-12m. Basic: tan of angle = opposite side / adjecent side ; tan 30 = 1/ ( square root of 3) = 1 / (1.73) Given man is 2 meter tall so actual height will be 2m addition to obtained opposite side X. Given adjecent side is 10 * (square root of 3) 10 * 1.73 Now tan angle is ===> X / ( 10 * 1.73) = 1 / 1.73 ===> X * 1.73 / 10 * 1.73 = 1 ===> X = 10 m ( obtained opposite side ) therefore Actual height is X + 2 = 10 + 2 = 12 meter.
Answer

Answer is B 12 m

Basic:     tan of angle = opposite side / adjecent side ;  tan 30 = 1/ ( square root of 3) = 1 / (1.73)

Given man is 2 meter tall so  actual height will be 2m addition to obtained opposite side X.

Given adjecent side is 10 * (square root of 3) 10 * 1.73

Now tan angle is     ===> X / ( 10 * 1.73) = 1 / 1.73

                               ===> X * 1.73 / 10 * 1.73 = 1

                               ===> X = 10 m ( obtained opposite side )

therefore Actual height is X + 2 = 10 + 2 = 12 meter.

Answer

option B is correct. sorry for previous answer which was totally wrong

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