Quadrilaterals and Polygons
Sir, how do we know that A,B,E,D are concyclic points (as mentioned in the solution)?
A regular polygon has interior angles of 168°. How many sides does the polygon have ?
A regular polygon has an interior angle that measures 144° , and a side of which is 12 units long . What is the perimeter of the regular polygon ?
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In a quadrilateral ABCD , AB is parallel to CD. AB= 8 cm , BC = 10 cm ,CD = 16 cm and AD =10 cm. Find the sum of the lengths of the diagonals.
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In a regular polygon of ‘n’ sides, a circle of radius r is inscribed and another circle of radius R is circumscribed. Which of the following is definitely true?
R/r > 1
R/r < 2
R/r ≤ 2
1 < R/r ≤ 2
Three identical squares with bases AP, PQ, and QB are put next to each other to form a rectangle ABCD. Find the sum of the angles <APD + <AQD + <ABD.
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