Area of a rectangle and the area of a circle are equal. If the dimensions of the rectangle are 14cm × 11 cm. Find the radius of the circle .

Question

Area of a rectangle and the area of a circle are equal. If the dimensions of the rectangle are 14cm × 11 cm. Find the radius of the circle .

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Thu Cúc 4 years 2021-08-07T21:56:56+00:00 1 Answers 28 views 0

Answers ( )

  1. huyenthanh
    0
    2021-08-07T21:58:02+00:00
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    Answer:

    7cm

    Step-by-step explanation:

    Area of rectangle: length × breadth

    14cm × 11cm= 154cm²

    Area of a circle: \pi\\r²

    \frac{22}{7} × r × r= 154cm²

    \frac{22}{7} x r²= 154cm²

    r²= 154 x \frac{7}{22}

    r²= 49

    r= √49

    r= 7

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