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B. Write 'true' or 'false' : Inangle"A...

B. Write 'true' or 'false' :
In`angle"ABC", angle"B" = 90^(@)`, If AB = BC, then `angle"C" =60^(@)`.

Text Solution

Verified by Experts

(i) False,
Since, let `angleC = theta`.
then `tan theta = (AB)/(BC)`
`= (AB)/(AB) [ because " ""AB" = "BC"]`
`rArr tna theta = 1 `
` rArr tan theta = tan 45^(@)`
` rArr = 45^(@)`
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