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### Grade 7 - Mathematics9.61 Geometry And Measurement - Review Test

 Q 1: An arc AB subtends an angle of 240 ° at the center O of a circle. Find the radius of the circle if the area of the sector OAB is given by 102.67 sq cm.8 cm9 cm6 cm7 cm Q 2: A sector has radius is 8 cm. Find the length of an arc of the sector if its area is given by 480 sq cm.180 cm120 cm160 cm120 cm Q 3: The arc of a sector whose radius is 15 cm is 16 cm. Find its area.150 Sq.cm.140 Sq.cm.None of these120 Sq.cm. Q 4: The base and height of a triangle are 4 cm and 5 cm respectively. Find its area.20 sq.cm10 sq.cm5 sq.cm6 sq.cm Q 5: The outer and inner radii of a ring are 17.5x cm and 15.75x cm. Find x if its area is given by 731.5 sq cm.3 cm2 cm1 cm4 cm Q 6: The area of circular park is 3850 square metres. Find the width of the path laid around and inside of the circular park if the area of the path is given by 3876 square metres.0.7 m7 m0.007 m0.07 m Q 7: The length of an arc of a sector whose radius is 28 cm, is 132 cm. Find its area.1263 sq cm1849 sq cm1848 sq cm1346 sq cm Q 8: In a quadrilateral, the diagonals intersect at right angles and have lengths equal to 7.5 cm and 8.5 cm respectively. Find the area of the quadrilateral.31.23 sq cm32.78 sq cm32.15 sq cm31.88 sq cm Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!