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The lengths of the diagonals of a rhombu...

The lengths of the diagonals of a rhombus are 12 cm and 16 cm. Find the area of rhombus

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To find the area of a rhombus given the lengths of its diagonals, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the lengths of the diagonals**: - Let \( d_1 = 12 \) cm (length of the first diagonal). - Let \( d_2 = 16 \) cm (length of the second diagonal). 2. **Use the formula for the area of a rhombus**: - The formula for the area \( A \) of a rhombus when the lengths of the diagonals are known is: \[ A = \frac{1}{2} \times d_1 \times d_2 \] 3. **Substitute the values of the diagonals into the formula**: - Substitute \( d_1 \) and \( d_2 \): \[ A = \frac{1}{2} \times 12 \times 16 \] 4. **Calculate the area**: - First, calculate \( 12 \times 16 \): \[ 12 \times 16 = 192 \] - Now, calculate \( \frac{1}{2} \times 192 \): \[ A = \frac{192}{2} = 96 \text{ square cm} \] 5. **Final result**: - The area of the rhombus is \( 96 \) square cm.
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Knowledge Check

  • The lengths of the diagonals of a rhombus are 12 cm and 16 cm. The area of the rhombus is

    A
    192 `cm^(2)`
    B
    96 `cm^(2)`
    C
    64 `cm^(2)`
    D
    80 `cm^(2)`
  • The lengths of the diagonals of a rhombus are 18 cm and 15 cm. The area of the rhombus is

    A
    `270 cm^(2)`
    B
    `135 cm^(2)`
    C
    `90 cm^(2)`
    D
    `180 cm^(2)`
  • The lengths of the diagonals of a rhombus are 16 cm and 12 cm. Its area is:

    A
    `69 cm^2`
    B
    `48 cm^2`
    C
    `28 cm^2`
    D
    `96 cm^2`
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