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Calculate the base area and volume for a rectangular prism and a cylinder with given dimensions.

Mathematics

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2 parts
a

136 cm2136 \text{ cm}^2

1088 cm31088 \text{ cm}^3

b

9π cm2 (or approx. 28.27 cm2)9\pi \text{ cm}^2 \text{ (or approx. } 28.27 \text{ cm}^2)

72π cm3 (or approx. 226.19 cm3)72\pi \text{ cm}^3 \text{ (or approx. } 226.19 \text{ cm}^3)

Step-by-step solution

4 steps

We need to find the base area and volume for both figures.

Part a· 2 steps

Rectangular Prism

The dimensions of the rectangular prism are:
Length (ll) = 17 cm
Width (ww) = 8 cm
Height (hh) = 8 cm

  1. Calculate the base area.

    The base is a rectangle, so its area is length ×\times width.

    Abase=l×wA_{\text{base}} = l \times w Abase=17 cm×8 cmA_{\text{base}} = 17 \text{ cm} \times 8 \text{ cm} Abase=136 cm2A_{\text{base}} = 136 \text{ cm}^2
  2. Calculate the volume.

    The volume of a rectangular prism is base area ×\times height.

    V=Abase×hV = A_{\text{base}} \times h V=136 cm2×8 cmV = 136 \text{ cm}^2 \times 8 \text{ cm} V=1088 cm3V = 1088 \text{ cm}^3

    For the rectangular prism:
    Base Area: 136 cm2\boxed{136 \text{ cm}^2}
    Volume: 1088 cm3\boxed{1088 \text{ cm}^3}

Part b

9π cm2 (or approx. 28.27 cm2)9\pi \text{ cm}^2 \text{ (or approx. } 28.27 \text{ cm}^2)

Cylinder

The dimensions of the cylinder are:
Radius (rr) = 3 cm
Height (hh) = 8 cm

  1. Calculate the base area.

    The base is a circle, so its area is πr2\pi r^2.

    Abase=πr2A_{\text{base}} = \pi r^2 Abase=π(3 cm)2A_{\text{base}} = \pi (3 \text{ cm})^2 Abase=9π cm2A_{\text{base}} = 9\pi \text{ cm}^2

    Using π≈3.14159\pi \approx 3.14159:

    Abase≈9×3.14159 cm2A_{\text{base}} \approx 9 \times 3.14159 \text{ cm}^2 Abase≈28.27 cm2A_{\text{base}} \approx 28.27 \text{ cm}^2
  2. Calculate the volume.

    The volume of a cylinder is base area ×\times height.

    V=Abase×hV = A_{\text{base}} \times h V=(9π cm2)×8 cmV = (9\pi \text{ cm}^2) \times 8 \text{ cm} V=72π cm3V = 72\pi \text{ cm}^3

    Using π≈3.14159\pi \approx 3.14159:

    V≈72×3.14159 cm3V \approx 72 \times 3.14159 \text{ cm}^3 V≈226.19 cm3V \approx 226.19 \text{ cm}^3

    For the cylinder:
    Base Area: 9π cm2 (or approx. 28.27 cm2)\boxed{9\pi \text{ cm}^2 \text{ (or approx. } 28.27 \text{ cm}^2)}
    Volume: 72π cm3 (or approx. 226.19 cm3)\boxed{72\pi \text{ cm}^3 \text{ (or approx. } 226.19 \text{ cm}^3)}

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