jha20070519 jha20070519

02-10-2022
Mathematics

Answered

Thao sees a plane directly above her which is flying at a height of 800m. The plane continues flying at that height and 20 second later the angle of elevation of the plane from Thao is 35°.
a) How far did the plane travel in 20 seconds, correct to the nearest metre?
b) What is the plane's speed in km/h, correct to the nearest km

Answer :

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