A semicircle is drawn with Ab as its diameter.From C, a point on AB, a line perpendicular to AB is drawn,
meeting the circumference of the semicircle at D.Given That AC = 2cm and CD = 6 cm the area of the semicircle (in sq. cm) will be:

• let the centre of the circle is o then CDO is a right angle triangle Then from which we can find the radius of the semi circle which is 10 now the area is equal to the pi(10)^2/2=50pi;
• 8 years agoHelpfull: Yes(2) No(1)
• ANS IS :50PI=50*(22/7)
  angle in semi circle is 90.join the ends of diameter on semicircle .apply pythogoras theorem.
  (or)
  from centre join CD apply pythogoras theorem
• 8 years agoHelpfull: Yes(0) No(0)