Question

in rectangle abcd, ab =20 , angle bac = 60 degree, calculate the length of side bc and diagonally ac and bd​

Answer 1

Step-by-step explanation:

In △ABC, from the above figure

tan 60° = AB/BC = √3

√3 = BC/20

∴ BC=20 √3 cm

cos60∘ = AB/AC = 1/2

1/2 = 20/AC

∴ AC=40 cm

In a rectangle, the two diagonals are equal.

∴ AC=BD=40 cm

Answer 2

Answer:

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