Math, asked by samikshahatwar32716, 1 year ago

in ∆abc , ab=6√3cm, ac=12cm, bc=6cm. find masure angle A. give ans in stape by stape mannure

Anonymous: which grade question is this ?

samikshahatwar32716: sorry

samikshahatwar32716: i don't understand

Anonymous: I meant which standard ?

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Answers

Answered by Likesmm

Answer:

Step-by-step explanation:

By converse of pytha gorqs theorum

First we observe that ab square +bc square =ac square(144=144)

Now , angleB =90degree

Sin angleA = perpendicular /hypotenuse

Sin angle A = 6√3/12

Sin angle A = √3/2

Sin 60° = √3/2

Hence angle A = 60°

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