In the quadrilateral ABCD angel A=115degree angel B=84degree angle C=56degree find the measure of angle D
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Step-by-step explanation:
Given: In quad. ABCD we have,
A=115°,B=84° and C=56°.
To find: D
Sol: In quad, ABCD.
A+B+C+D=360°(As aum of all
angles of a
quad is 360°)
=115°+84°+56°+D=360°
=255°+D=360°
=D=360°-255°
=D=105°
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