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if the length of two diagonals …

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if the length of two diagonals of a rhombus are 16 cm and 30 cm find the area and the length of the side of the rhombus ?

    • Posted by Khushi Tilani 5 years, 3 months ago

    CBSE > Class 08 > Mathematics
    • 2 answers

    Raunak Singh 5 years, 3 months ago

    area = 1/2 × product of diagonals so area = 1/2 × 30 ×16 = 240 cm² also diagonals bisect each other at right angles so 1/2×30= 15cm,,,, 1/2×16 =8cm therefore by Pythagoras theorem, 15² + 8² = side² √289 = side side = 17 cm thus perimeter = 4 × 17 = 68 cm

    0Thank You

    Gaurav Seth 5 years, 3 months ago

    area = 1/2 × product of diagonals
    so area = 1/2 × 30 ×16 = 240 cm²

    also diagonals bisect each other at right angles
    so 1/2×30= 15cm,,,, 1/2×16 =8cm

    therefore by Pythagoras theorem,
    15² + 8² = side²
    √289 = side
    side = 17 cm

    thus perimeter = 4 × 17 = 68 cm

    0Thank You

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