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Geometry

[Smart Math] Geometry Problem 15

September 1, 2012 |

Author LazyMaths.com

Here’s and example of a SMART MATH problem for GEOMETRY.

Geometry

Problem

A rectangular bin 4 feet long, 3 feet wide and 2 feet high is solidly packed with bricks of dimensions 8 inches, 4 inches and 2 inches. Find the maximum number of bricks that can go in the bin.

54
320
648
848
cannot be determined

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Tags: Geometry, Math Tricks, Mental Math, Smart Math |

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[Smart Math] Geometry Problem 14

September 1, 2012 |

Author LazyMaths.com

Here’s and example of a SMART MATH problem for GEOMETRY.

Geometry

Problem

A certain pole casts a shadow 24 feet long. At the same time another 3 feet high casts a shadow 4 feet long. How high is the first pole given that the heights and shadows are in proportion?

18 feet
19 feet
20 feet
21 feet
22 feet

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Tags: Geometry, Math Tricks, Mental Math, Smart Math |

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[Smart Math] Geometry Problem 13

September 1, 2012 |

Author LazyMaths.com

Here’s and example of a SMART MATH problem for GEOMETRY.

Geometry

Problem

The equal sides of an isosceles triangle are even integers only. What is the area of the triangle if the perimeter is 7 units?

7 sq. units
3 sq. units
8 sq. units
$\frac{3\sqrt{7}}{4}$ sq. units
$3\sqrt{7}$ sq. units

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Tags: Geometry, Math Tricks, Mental Math, Smart Math |

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[Smart Math] Geometry Problem 12

September 1, 2012 |

Author LazyMaths.com

Here’s and example of a SMART MATH problem for GEOMETRY.

Geometry

Problem

Find the areas of the shaded region in the equilateral triangle.

Geo12

$\frac{\pi }{a^{2}}$ sq. units
$3a^{2}-a$ sq. units
$\frac{\pi }{3}\left( a^{2}-1 \right)$ sq. units
$\frac{a^{2}}{4}\left( \sqrt{3}-\pi \right)$ sq. units
$a\left( \frac{\pi }{3}-1 \right)$ sq.units

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Tags: Geometry, Math Tricks, Mental Math, Smart Math |

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[Smart Math] Geometry Problem 11

September 1, 2012 |

Author LazyMaths.com

Here’s and example of a SMART MATH problem for GEOMETRY.

Geometry

Problem

A large cube is formed from the material obtained by melting three smaller cubes of side 3, 4 and 5 cms. What is the ratio of the total surface areas of the smaller cubes and the large cube?

4 : 3
3 : 2
25 : 27
27 : 20
32 : 15

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Tags: Geometry, Math Tricks, Mental Math, Smart Math |

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[Smart Math] Geometry Problem 10

September 1, 2012 |

Author LazyMaths.com

Here’s and example of a SMART MATH problem for GEOMETRY.

Geometry

Problem

The area of the four walls of a room is 1080 sq.ft. If the height and length of the room are in the ratio of 2 : 5 and the height and breadth are in the ratio 4 : 5. What is the area of the roof?