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SASMO 2018 Secondary 4 (Grade 10) Contest Question 12

SASMO · SASMO 2018 Secondary 4 (Grade 10) Contest

Question 12

a
a SNe
The centre of the circle in the diagram is point
/ O. All the vertices of the two triangles are on So
the circumference of the circle. The diameter is A›
equal to 25 cm and EF = 20 cm. If ZEDF = 37° 5
and 2BCA = 53°, find the area of AABC.

Question illustration
  1. 100 cm?
  2. 150 cm? n a
  3. 250 cm?
  4. 300 cm?
  5. None of the above