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The angles pf a quadrilateral ABCD are angle A =30, Angle b=60,Angle c=75.What is the measure of angle D?State whether the quadrilateral is concave or convex? |
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Answer» The angles pf a quadrilateral ABCD are angle A =30, Angle b=60,Angle c=75.What is the measure of angle D?State whether the quadrilateral is concave or convex? |
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