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Geometric Shapes and Mensuration Flashcards

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

Read the first 7 Geometric Shapes and Mensuration flashcards as text
  1. The perimeter of a rectangle is 56 cm. If its length is 18 cm, what is its width?

    Answer: 10 cm

    Perimeter = 2(l + w), so 56 = 2(18 + w), giving w = 28 − 18 = 10 cm.

  2. What is the area of a circle with diameter 14 cm? (Use π = 22/7)

    Answer: 154 cm²

    Radius = 7 cm; Area = πr² = (22/7) × 49 = 154 cm².

  3. A square has an area of 64 cm². What is its perimeter?

    Answer: 32 cm

    Side = √64 = 8 cm; Perimeter = 4 × 8 = 32 cm.

  4. What is the area of a trapezoid with parallel sides 10 cm and 6 cm, and a perpendicular height of 4 cm?

    Answer: 32 cm²

    Area = ½(a + b)h = ½(10 + 6) × 4 = ½ × 16 × 4 = 32 cm².

  5. A parallelogram has a base of 12 cm and a height of 5 cm. What is its area?

    Answer: 60 cm²

    Area of a parallelogram = base × height = 12 × 5 = 60 cm².

  6. The circumference of a circle is 44 cm. What is its radius? (Use π = 22/7)

    Answer: 7 cm

    C = 2πr → 44 = 2 × (22/7) × r → r = 44 × 7 / 44 = 7 cm.

  7. A triangle has a base of 10 cm and a height of 8 cm. What is its area?

    Answer: 40 cm²

    Area = ½ × base × height = ½ × 10 × 8 = 40 cm².