Question

what is the length of the shadow of a person whose height is 1.25m when the sunrays make an angle of 45 with horizontal​

Answer 1

Answer:

let

length of shadow be x

1.25/x = tan45

1.25/x = 1/2

x = 1.25m

the length of the shadow is 1.25m

Answer 2

The length of the shadow of the person is 1.25 m

• Let the length of the shadow of the person is x m.
• Now the sunrays make an angle of 45 degree with the horizontal. So the person and his shadow makes an right angled triangle with perpendicular as the length of the person and base as the length of his shadow and the base angle as 45 degrees.
• Now applying trigonometry we get tan 45 = $\frac{1.25}{x}$
• Now tan 45 = 1. So We get from that x = 1.25
• Hence the length of the shadow of the person is also 1.25 m