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

Physical activity is an important component of healthful living. 1. Name a short-term consequence of a sedentary lifestyle. 2. Explain how this short-term cons

What direction does water and the flows during countercurrent flows

Please fix this sentence: i wanna take a photo wiht you plz

HELP PLEASE!! no comprende :(

How did the role of the plebeians in the Roman government change over time?

President Lincoln’s suspension of the writ of habeas corpus during the Civil War meant that people could be jailed illegally. lost the right to bear arms. lost

Explain why some people feel that the development of human cloning is like the development of nuclear weapons.

Suraji took a slice of pizza form the freezer and put it in the oven. The pizzas temperature (in degrees Celsius) as a function of time (in minutes) is graphed

Two families went to Rollercoaster World. The Brown family paid $170 for 3 children and 2 adults. The Peckham family paid $360 for 4 children and 6 adults. If x

Pro democracy student demonstrations took place in • China and Japan China and India China and South Africa China and North Korea