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Delta PQR is an equilateral triangle. If...

`Delta PQR` is an equilateral triangle. If PQ = 10 cm. Find the area of `Delta PQR` using Heron's formula.

Text Solution

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The correct Answer is:
`25 sqrt(3) cm^(2)`
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Knowledge Check

  • PQRS is a square. If PQ = 10 cm, then PR = …………… cm.

    A
    10
    B
    20
    C
    `10 sqrt(2)`
    D
    `2 sqrt(10)`

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