Q. 53.7( 29 Votes )

ABCD is a rectang

Answer :


Given:- ABCD is a rectangle


Formula used:- All angles of rectangle are 90°


In right angle triangle


Pythagoras theorem a2+b2=c2


Sin(θ)=


Solution:-


In ΔACD


D=90° [All angles of rectangle are 90° ]


ACD=θ1


And; Sin(θ1) = =


θ1=arc sin()


DAC=θ2


And; Sin(θ2) = =


θ1=arc sin()


Conclusion:-


The angles of Δ ACD are :-


D=90°


DAC=arc sin()


ACD=arc sin()


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