Thursday, August 1, 2013

 

Area of segment

Find the area of light green segment correct to three significant figures.

Given that: An isosceles triangle is inscribed in a circle such that AB=AC;
 
  Line XY and BC are parallel,
 
Where BC is =20cm,
AP is a perpendicular to BC and at D and passing through center of the circle. 
The area of Triangle AXY= (4428/35) cm2
 
Area of segment Brown segment BC= (38.53357802) cm2 .
 

This question requires Algebra, properties of circle and manipulation skills to deal with  similarity and congruency.
 
Given options
 
A=347 cm2
 
B=285 cm2
 
C=372 cm2
 
D=430 cm2
 
E=257 cm2

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