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AA app.educationperfect.com Education P... Beach Form... ep Online Shop... (15) Beach Form... S s3.amazona... B Bytelearn Gaga GagaMia Calculating Surface Area of Prisms Sebastyan A 238 Estelle B 240 Ali I 240 You 240 Mookyungs 246 Almaa M 247 Rashid W 24 s {:[=21 ×18],[=378cm^(2)]:} A_("Rectangle ")=lw {:[=21 ×27],[=567cm^(2)]:} A_("Rectangle ")=lw {:[=18 ×27],[=486cm^(2)],[SA=378+378+486+486+567+567],[SA=2862cm^(2)]:}

AA\newlineapp.educationperfect.com\newlineEducation P...\newlineBeach Form...\newlineep\newlineOnline Shop...\newline(1515)\newlineBeach Form...\newlineS s33.amazona...\newlineB\newlineBytelearn\newlineGaga\newlineGagaMia\newlineCalculating Surface Area of Prisms\newlineSebastyan A 238238\newlineEstelle B\newline240240\newlineAli I 240240\newlineYou 240240\newlineMookyungs 246246\newlineAlmaa M 247247\newlineRashid W 2424 s\newline=21×18=378 cm2 \begin{array}{l} =21 \times 18 \\ =378 \mathrm{~cm}^{2} \end{array} \newlineARectangle =lw A_{\text {Rectangle }}=l w \newline=21×27=567 cm2 \begin{array}{l} =21 \times 27 \\ =567 \mathrm{~cm}^{2} \end{array} \newlineARectangle =lw A_{\text {Rectangle }}=l w \newline=18×27=486 cm2SA=378+378+486+486+567+567SA=2862 cm2 \begin{array}{c} =18 \times 27 \\ =486 \mathrm{~cm}^{2} \\ S A=378+378+486+486+567+567 \\ S A=2862 \mathrm{~cm}^{2} \end{array}

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Q. AA\newlineapp.educationperfect.com\newlineEducation P...\newlineBeach Form...\newlineep\newlineOnline Shop...\newline(1515)\newlineBeach Form...\newlineS s33.amazona...\newlineB\newlineBytelearn\newlineGaga\newlineGagaMia\newlineCalculating Surface Area of Prisms\newlineSebastyan A 238238\newlineEstelle B\newline240240\newlineAli I 240240\newlineYou 240240\newlineMookyungs 246246\newlineAlmaa M 247247\newlineRashid W 2424 s\newline=21×18=378 cm2 \begin{array}{l} =21 \times 18 \\ =378 \mathrm{~cm}^{2} \end{array} \newlineARectangle =lw A_{\text {Rectangle }}=l w \newline=21×27=567 cm2 \begin{array}{l} =21 \times 27 \\ =567 \mathrm{~cm}^{2} \end{array} \newlineARectangle =lw A_{\text {Rectangle }}=l w \newline=18×27=486 cm2SA=378+378+486+486+567+567SA=2862 cm2 \begin{array}{c} =18 \times 27 \\ =486 \mathrm{~cm}^{2} \\ S A=378+378+486+486+567+567 \\ S A=2862 \mathrm{~cm}^{2} \end{array}
  1. Calculate Area of First Rectangle: Calculate the area of the first rectangle using the formula A=l×wA = l \times w, where ll is the length and ww is the width.A=21 cm×18 cm=378 cm2A = 21 \, \text{cm} \times 18 \, \text{cm} = 378 \, \text{cm}^2.
  2. Calculate Area of Second Rectangle: Calculate the area of the second rectangle using the same formula A=l×wA = l \times w.A=21 cm×27 cm=567 cm2A = 21 \, \text{cm} \times 27 \, \text{cm} = 567 \, \text{cm}^2.
  3. Calculate Area of Third Rectangle: Calculate the area of the third rectangle using the formula A=l×wA = l \times w.\newlineA=18 cm×27 cm=486 cm2A = 18 \, \text{cm} \times 27 \, \text{cm} = 486 \, \text{cm}^2.
  4. Find Total Surface Area: Add up the areas of all the rectangles to find the total surface area (SA) of the prism. SA=378 cm2+378 cm2+486 cm2+486 cm2+567 cm2+567 cm2SA = 378 \, \text{cm}^2 + 378 \, \text{cm}^2 + 486 \, \text{cm}^2 + 486 \, \text{cm}^2 + 567 \, \text{cm}^2 + 567 \, \text{cm}^2.
  5. Perform Addition: Perform the addition to find the total surface area. SA=2862 cm2SA = 2862 \, \text{cm}^2.

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