sapkotarakshika111 sapkotarakshika111

01-09-2020
Mathematics

contestada

From the top of a tree 20 metres high,the angle of depression at a point on the opposite bank of a river is found to be 30° .Find the breadth of the river.

Respuesta :

itsabraham2004 itsabraham2004

01-09-2020

Answer:

17.3

Step-by-step explanation:

sin(30)=0.5

0.5*20=100

20*20+x*x=100

x=17.3

Answer Link

Otras preguntas

what is the largest prime factor of 34

THE FULL MOON TURNED ORANGE AND THEN GOT REALLY DARK WHAT COULD HAVE MADE IT TURN DARK LIKE THAT

how many peanuts will each person get if 3 people share 1/5 pound of peanuts equally write and solve a division equation to represent the problem

After his paycheck, Mr.Weber's credit card balance was $245.76. His payment was for $75.00. Write and solve an equation to find the amount of his credit card

how do you work out 45.3x6 using grid method

why do people join interest groups?

two thirds of what number equals 436

what act did the united states government pass in order to be able to move Native American of their lands into the Indian's Territory? A) Native American Act B)

why did president Truman believe that the United States should sign the North Atlantic treaty

In a short response of at least three complete sentences, define flash-forward and explain its effect on a traditional plot structure