Question

I got 47.01816163 metres. When I tried to round it I got it wrong. Can someone please help me?

Answer 1

Answer:

28 m

Step-by-step explanation:

The top angle in the triangle = 90° - 62° = 28°

Using the cosine ratio in the right triangle

cos28° = $\frac{adjacent}{hypotenuse}$ = $\frac{25}{x}$

cross- multiply

x × cos28° = 25 ( divide both sides by cos28° )

x = $\frac{25}{cos28}$ = 28.31425... ≈ 28 m

Thus the distance from the top to the crocodile is 28 m

Answer 2

Answer:

28.31 m to the nearest cm.

Step-by-step explanation:

Note the angle next to the crocodile measures  62 degrees ( alternate angles).

The required distance is the hypotenuse of the triangle and the  height 25m is the opposite side to the angle of  62 degrees..

Therefore we have sin 62 = 25 /x  where x is the distance required.

x = 25 / sin 62

= 28.31 m.