Q15Short answerExercise 11.4
Area of a sector of central angle 200° of a circle is 770 cm . Find the length of the corresponding arc of this sector. AREA RELATED TO CIRCLES 135
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73 cm , Areas: cm , 154 cm2 ; Arc lengths: cm ; 6 3 3 3 Arc lengths of two sectors of two different circles may be equal, but their area need not be equal. 25π 25 17. 180 – 8π cm2 18. 40 19. + cm 2 20. 462 cm 2 4 2 tt ©