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? asked in Science & MathematicsMathematics · 4 months ago

What is the calculate of the total surface area?

Attachment image

4 Answers

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  • Ash
    Lv 7
    4 months ago

    The bottom rectangle does not have dimensions but I am going to it is 15 x 9

    Since this is a 2D image, Surface Area is just Area

    Total Area = Area of 2 triangles + Area of 3 rectangles

    TA = 2( ½bh) + 3(LW)

    TA = 2( ½*9*8) + 3(15*9)

    TA = 72 + 405

    TA = 477 sq. units

  • ?
    Lv 7
    4 months ago

    The total surface area:

    3*135 + 2*36 = 477

  • rotchm
    Lv 7
    4 months ago

    I will help you if you unanon yourself. There is no reason to be anon here. 

  • billrussell42
    Lv 7
    4 months ago

    again, you are missing a lot of numbers.

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