A bridge across a river makes an angel of 45° with the river bank. If the length of the bridge across the river is 200 meters , wh

1 thought on “A bridge across a river makes an angel of 45° with the river bank. If the length of the bridge across the river is 200 meters , wh”

1. Answer:

   100√2

   Step-by-step explanation:

   sin45

   ∘

   =

   BC/AC

   ⇒

   1/√2

   =

   BC/200

   ⇒BC=

   200/√2

   ⇒BC=100√2

   m

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