geo w6 circle ( Geometry )

© 2009 -2011 tutorco.com 1 Q1) Using the given figure, fill in the blanks i) RS is the ______________ ii) Diameter of the circle is__________________ iii) Tangent of the circle is ___________________ iv) EF is a ________________ of the circle. v) _________________ is the chord of the circle. GEOMETRY CIRCLES Geo_4_6_S © 2009 -2011 tutorco.com 2 Q2) Length YZ Q3) Q4) What is the measure of the radius of the circle on the left? © 2009 -2011 tutorco.com 3 Q5) The length of a chord of a circle is 48cm and it lies at a distance Of 7 cm from the centre. If the length of another chord is 40 cm find its distance from the centre. Q6) What must be the length of LM for this line to be a tangent line of the circle with center N? Q7) Use the chords to find the value of sum of intercepted arcs (assume all arcs to be minor arcs). © 2009 -2011 tutorco.com 4 Q8) Q9) Calculate the size of angle x Q10) Find the angles of x and y If angle BAC = 35° and EBC = 80° What is angle ADB What is angle ADC 2200 X A B C f Y 600 X 0 A B C © 2009 -2011 tutorco.com 5 Q11) The circumference of a circle is 15.7 centimeters. What is the diameter? Q12) Find the circumference NY = 43 ft Q13) Find the circumference KJ = 36 mm Q14) Calculate the area Q15) A piece of wire in the form of a rectangle 8.9 cm long and 5.4 cm broad is reshaped and bent into the form of a circle. Find the radius of the circle. © 2009 -2011 tutorco.com 6 Q16) Q17) r=18 cm, =60° Q18) Find the area of the sector © 2009 -2011 tutorco.com 7 Q19) Q20) © 2009 -2011 tutorco.com 8 Q21) What is the area of the circle on the left? Q22) What is the circumference of the circle below. Q23) A circle's circumference is (102)". What is the diameter of the circle? © 2009 -2011 tutorco.com 9 Q24) Find the area of the arc of a sector if the central angle is equal to 270 degree and radius is equal to 22 inches. Q25) Find the perimeter of a half circle whose radius is 6cm.