Question

An aeroplane is flying at a height of 300 m above the ground

Answer 1

Answer:

An aeroplane is flying at a height of 300 m above the ground. Flying at this height, the angles of depression from the aeroplane of two points on both banks of a river in opposite directions are 45° and 60° respectively. Find the width of the river. [Use √3 = 1.732]

Step-by-step explanation:

tan 45° = 300/y

1 = 300/y

y = 300

tan 60° = 300/x

√3 = 300/x

x = 300/√3

x = 100√3

Width of river = x + y

= 300 + 100√3

= 300 + 173.2

= 473.2 m

Answer 2

Answer:

the answer is 473.2m .............