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Fundamental Geometric Concepts Flashcards

6 cards from real CAAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Fundamental Geometric Concepts flashcards as text

  1. An angle that measures exactly 180 degrees is known as what type of angle?

    Answer: Straight angle

    By definition, a straight angle measures exactly 180 degrees, forming a straight line. An acute angle is less than 90 degrees, a right angle is exactly 90 degrees, and an obtuse angle is between 90 and 180 degrees.

  2. A farmer wants to build a fence around a perfectly square field. If one side of the field measures 50 meters, what is the total length of fencing required?

    Answer: 200 meters

    The perimeter of a square is calculated by adding the lengths of all four equal sides, or by using the formula P = 4s. In this case, 4 multiplied by 50 meters equals 200 meters. The value of 2500 square meters represents the area of the field, not its perimeter.

  3. Which of the following statements best describes perpendicular lines?

    Answer: Two lines that intersect to form a 90-degree angle.

    The definition of perpendicular lines is that they intersect at a right angle, which measures exactly 90 degrees. Lines that are in the same plane and never intersect are called parallel lines.

  4. If the diameter of a circle is 14 cm, what is its radius?

    Answer: 7 cm

    The radius of a circle is always half the length of its diameter. Therefore, if the diameter is 14 cm, the radius is calculated as 14 cm divided by 2, which equals 7 cm.

  5. A triangle has three sides with the following lengths: 6 cm, 6 cm, and 10 cm. What type of triangle is this?

    Answer: Isosceles

    An isosceles triangle is defined as a triangle with at least two sides of equal length. Since this triangle has two sides measuring 6 cm, it is an isosceles triangle. An equilateral triangle has three equal sides, and a scalene triangle has no equal sides.

  6. A homeowner is buying carpet for a rectangular living room. The room measures 5 meters in length and 4 meters in width. How many square meters of carpet are needed to cover the entire floor?

    Answer: 20 square meters

    The area of a rectangle is calculated by multiplying its length by its width (A = l × w). In this scenario, 5 meters multiplied by 4 meters equals 20 square meters. This is the total amount of carpet needed.