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To find the perimeter of trapezoid ABCD ...


To find the perimeter of trapezoid ABCD above, first draw `overline(EC)` parallel to `overline(AD)` thereby forming rectangle ABCD, which means that `EC=AD=12 and EA=CD=4`.

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ENGLISH SAT-ADDITIONAL TOPICS IN MATH-EXERCISE
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  2. A solid cube is put in a sphere. What is the least percentage of the v...

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  3. A circle intersects the X axis at (1,0) and (7,0). If the radius of t...

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  4. A hot air balloon was tied to a point on the ground using a rope 60m l...

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  6. In the figure shown above, AB and EF are parallel and measure 4 and 24...

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  7. The imaginary number "I" is such that i^(2)=-1. Which of the followin...

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  8. In the figure shown above, ABC is a triangle right angled at B. What i...

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  9. Angle ADB equals 110^(@). What is the value of angle BAX if X is the c...

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  10. What is the area of the quadrilateral ABCD as shown in the figure abov...

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  11. Which of the following statements is/are correct about the angle(10pi)...

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  12. In the figure GH|\|EF . What is the length of HE?

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  13. If (PS)/(PR)=(1)/(2) , PT=6 and QS=4, what is the length of PS?

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  14. The imaginary number "I" is such that i^(2)=-1. Which of the following...

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  15. Matt has a garden in the shape of a right-angled triangle with one of...

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  16. The angular elevations of a tower CD at a place A due south of it is ...

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  17. What is the perimeter, to the nearest integer, of an equilateral tri...

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  18. What is the area bounded by x^(2)+y^(2)-8x-6y=25,xge4 and yge3?

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  19. 2 parallel chords 24 cm, and 18 cm, are on the same side of the centre...

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  20. A right circular cone, with radius and height 8 and 6 respectively , ...

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  21. PQRS is a rectangle. T is a point on RS such that ST=2. If the area of...

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