Question

The drawbridge of a castle is 2 metres long. When the drawbridge is fully
extended, the angle between the bridge and the link chain is 30°.
(1) What is the length of the chain from the bridge to the wall?
(ii) What is the angle formed between the chain and the castle wall?​

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

1 :

length of the chain =

cos(30) = 2 / x

$\sqrt{3} / 2 = 2 / x$

$X = 2 * (2 / \sqrt{3} )$

$X = 4 / \sqrt{3}$ length of chain

2:

The angle between the chain and wall =

180 - (90 + 30)

180 - 120

60 degrees