Practice ECAT questions with answers and explanations.
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Rectangle area is length multiplied by width.
Thus, 12 × 7 = 84 m².
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Sphere volume is 4/3 πr³.
Thus, 4/3 × π × 27 = 36π cm³.
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Square area is side squared.
Thus, 9² = 81 cm².
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The edge length is the cube root of the volume.
Since 6³ = 216, the edge is 6 cm.
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The side length is √144 = 12 cm.
The perimeter is 4 × 12 = 48 cm.
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Distance is √[(3 - 0)² + (4 - 0)²].
This equals √25 = 5.
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Triangle area is one-half × base × height.
Thus, 1/2 × 10 × 6 = 30 cm².
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Average the x-coordinates and the y-coordinates separately.
The midpoint is ((2 + 8)/2, (3 + 7)/2) = (5, 5).
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Parallelogram area is base times perpendicular height.
Thus, 15 × 8 = 120 cm².
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Slope is change in y divided by change in x.
Thus, (10 - 2)/(5 - 1) = 8/4 = 2.
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Area is one-half × sum of parallel sides × height.
Thus, 1/2 × 22 × 5 = 55 cm².
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Circumference is 2πr.
Thus, 2 × 22/7 × 7 = 44 cm.
