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### Grade 8 - Mathematics3.53 Formulas of Geometric Figures - Review

 Directions: Choose the correct answers.
 Q 1: Area of a circle:pi*r2pi*r2*pi*r2 Q 2: Area of a semi-circle:1/2*(pi*r2)2*pi*rpi*r1 Q 3: Circumference of a semi-circle:pi*r2pi*rpi*r + 2*r Q 4: Perimeter of a square:a24alb Q 5: Area of triangle:1/2 bhlb4a Q 6: Area of a rectangle:a2lb4a Q 7: Diamater of a circle:2(l+b)2*pi*r2r Q 8: Perimeter a rectangle:2(l+b)lba2 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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