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 Numbers and The Number System 40 Flashcards |
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The sum of angles in a triangle is ___ degrees. |
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180 degrees  |
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What is the area of a rectangle with length 5 units and width 3 units? |
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15 square units  |
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If a rectangle has a perimeter of 24 units and a length of 8 units, what is the width? |
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4 units  |
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True or False: The product of any two even numbers is odd. |
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False; the product is even.  |
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Fill in the blank: The quadratic formula is used to find the roots of the equation ___ = 0. |
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Ax² + bx + c  |
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What is the value of 3² + 4²? |
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25  |
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If a circle has a radius of 7 units, what is its area? |
Card: 13 / 40 |
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154 square units  |
Card: 14 / 40 |
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Riddle: I am a three-digit number. My tens digit is five more than my units digit, and my hundreds digit is eight less than my tens digit. What number am I? |
Card: 15 / 40 |
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194  |
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Fill in the blank: The formula for the area of a triangle is ___ = ½ × base × height. |
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Area  |
Card: 18 / 40 |
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True or False: The sum of the interior angles of a quadrilateral is 360 degrees. |
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True  |
Card: 20 / 40 |
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What is the value of 2³ × 3²? |
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72  |
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If 5x = 25, then x = ___? |
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5  |
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Fill in the blank: The distance formula is ___ = √((x₂ - x₁)² + (y₂ - y₁)²). |
Card: 25 / 40 |
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Distance  |
Card: 26 / 40 |
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Riddle: I am a number that is both a square and a cube. What number am I? |
Card: 27 / 40 |
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1  |
Card: 28 / 40 |
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What is the slope of a line that passes through the points (2, 3) and (4, 7)? |
Card: 29 / 40 |
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2  |
Card: 30 / 40 |
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If the circumference of a circle is 31.4 units, what is the radius? |
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5 units  |
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True or False: The average of five numbers is always greater than the smallest number in the set. |
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False; it can be equal to or less than the smallest number.  |
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What is the square root of 144? |
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12  |
Card: 36 / 40 |
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If a car travels 60 miles in 1 hour, how far will it travel in 3 hours? |
Card: 37 / 40 |
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180 miles  |
Card: 38 / 40 |
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Fill in the blank: The formula for the volume of a cylinder is ___ = πr²h. |
Card: 39 / 40 |
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Volume  |
Card: 40 / 40 |
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Completed! Keep practicing to master all of them. |
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