Answer the following
1. Find x
2. Two adjacent angles of a parallelogram are in the ratio 4:5. Find their measures.
3. The angles of a quadrilateral are in the ratio 3 : 7 : 6 : 4. Find the angles.
4. Three angles of a quadrilateral are 50°, 40° and 123°. Find its fourth angle.
5. Each interior angle of a polygon is 108°. Find the number of sides of the polygon.
6. What is the sum of all the angles of a pentagon?
7. How many diagonals does a hexagon have?
8. A nonagon has __________ sides.
9. Find the values of x and y
10. PQRS is a parallelogram such that m∠R = 110°, then find m∠P and ∠S.
11. Two opposite angles of a parallelogram are (5x – 8)° and (2x + 82)°. Find the measures of each angle of the parallelogram.
12. The perimeter of a parallelogram is 150 cm. One of its side is greater than the other by 25 cm. Find length of all sides of the parallelogram.
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