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In a DeltaABC, it is given that angleA:a...

In a `DeltaABC,` it is given that `angleA:angleB:angleC=3:2:1andCDbotAC."Find "angleECD`

Text Solution

Verified by Experts

The correct Answer is:
`angleECD=60^(@)`
`angleC=(180xx(1)/(6))^(@)=30^(@)`
`angleACB+angleACD+angleECD=180^(@)" "["a straight angle"]`
`implies30^(@)+90^(@)+angleACB=180^(@)impliesangleECD=60^(@)`
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