PassEveryTest
中文

GED Mathematical Reasoning Preparation Course：GED geometry and measurement

不限时专题测验：关于GED geometry and measurement的17道题，每道题作答后都有解释。每次题目和选项都会重新打乱。

  • 课程
  • 美国
  • 100道题
  • 核对于2026年10月13日
  • 事实核查：2026年10月13日
从课文开始GED Mathematical Reasoning Preparation: Lessons：阅读时间约420分钟。测试中的每道题在课文中都有讲解。

专题测验3：GED geometry and measurement

  1. 第1题，共17题

    A rectangular yard is 14 feet long and 9 feet wide. What is its perimeter?
    显示答案

    答案: D. 46 feet

    Perimeter of a rectangle = 2l + 2w = 2(14) + 2(9) = 46 feet.

  2. 第2题，共17题

    A room is 12 feet by 15 feet. How much carpet covers the floor?
    显示答案

    答案: C. 180 square feet

    Area of a rectangle = length × width = 12 × 15 = 180 square feet.

  3. 第3题，共17题

    A triangle has a base of 10 inches and a height of 7 inches. What is its area?
    显示答案

    答案: A. 35 square inches

    Area of a triangle = 1/2 × base × height = 1/2 × 10 × 7 = 35 square inches.

  4. 第4题，共17题

    A circle has a radius of 5 inches. Using π ≈ 3.14, what is its area?
    显示答案

    答案: A. 78.5 square inches

    Area = πr² = 3.14 × 5 × 5 = 78.5 square inches. 31.4 is the circumference, not the area.

  5. 第5题，共17题

    A round table has a diameter of 14 inches. Using π ≈ 3.14, what is its circumference?
    显示答案

    答案: D. 43.96 inches

    Circumference = πd = 3.14 × 14 = 43.96 inches. Use the diameter, or 2 × the radius.

  6. 第6题，共17题

    A trapezoid has parallel sides of 8 feet and 12 feet and a height of 5 feet. What is its area?
    显示答案

    答案: B. 50 square feet

    Area = 1/2 × h × (b₁ + b₂) = 1/2 × 5 × (8 + 12) = 50 square feet.

  7. 第7题，共17题

    A right triangle has legs of 9 inches and 12 inches. How long is the hypotenuse?
    显示答案

    答案: A. 15 inches

    Pythagorean theorem: a² + b² = c². 81 + 144 = 225, and √225 = 15 inches.

  8. 第8题，共17题

    A 13-foot ladder leans on a wall. Its base is 5 feet from the wall. How high up the wall does it reach?
    显示答案

    答案: D. 12 feet

    The ladder is the hypotenuse: 5² + h² = 13², so h² = 169 − 25 = 144 and h = 12 feet.

  9. 第9题，共17题

    A rectangular patio is 20 feet by 12 feet. A 5-foot by 5-foot square in one corner is a planter, not paved. What area is paved?
    显示答案

    答案: B. 215 square feet

    Whole patio: 20 × 12 = 240 square feet. Subtract the planter: 5 × 5 = 25. 240 − 25 = 215 square feet.

  10. 第10题，共17题

    A rectangle has an area of 84 square inches and a width of 7 inches. What is its length?
    显示答案

    答案: D. 12 inches

    Area = length × width, so length = 84 ÷ 7 = 12 inches.

  11. 第11题，共17题

    A storage box is 2 feet by 3 feet by 4 feet. What is its volume?
    显示答案

    答案: A. 24 cubic feet

    Volume of a rectangular prism = l × w × h = 2 × 3 × 4 = 24 cubic feet.

  12. 第12题，共17题

    How much paper is needed to cover all six faces of a box that is 2 feet by 3 feet by 4 feet?
    显示答案

    答案: D. 52 square feet

    Surface area = 2(lw + lh + wh) = 2(6 + 8 + 12) = 2 × 26 = 52 square feet.

  13. 第13题，共17题

    A can is a cylinder with a radius of 3 inches and a height of 10 inches. Using π ≈ 3.14, what is its volume?
    显示答案

    答案: A. 282.6 cubic inches

    Volume of a cylinder = πr²h = 3.14 × 9 × 10 = 282.6 cubic inches.

  14. 第14题，共17题

    A cone has a radius of 3 inches and a height of 8 inches. Using π ≈ 3.14, what is its volume?
    显示答案

    答案: A. 75.36 cubic inches

    Volume of a cone = 1/3 × πr²h = 1/3 × 3.14 × 9 × 8 = 75.36 cubic inches. Without the 1/3 you would get 226.08.

  15. 第15题，共17题

    A pyramid has a square base 6 feet on each side and a height of 10 feet. What is its volume?
    显示答案

    答案: B. 120 cubic feet

    Volume of a pyramid = 1/3 × base area × height = 1/3 × 36 × 10 = 120 cubic feet.

  16. 第16题，共17题

    A ball has a radius of 3 inches. Using π ≈ 3.14, what is its volume?
    显示答案

    答案: C. 113.04 cubic inches

    Volume of a sphere = 4/3 × πr³ = 4/3 × 3.14 × 27 = 113.04 cubic inches.

  17. 第17题，共17题

    Each side of a cube-shaped box is doubled. What happens to the volume?
    显示答案

    答案: A. It becomes 8 times as large

    Volume = s³. If s doubles, the volume is (2s)³ = 8s³, so it is 8 times as large.

相关测试