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lpartyy93
lpartyy93 asked in Science & MathematicsMathematics · 1 decade ago

Finding the area of an irregular object?

I wanna find the area of an irregular shape.

Am I supposed to split the irregular up into simple shapes I know, like rectangles and trianges, and find the area. Then add all the areas together to find my total area?

OR

Am I supposed to find the perimeter of each simple shape and then add those together?

OR

Am I completely off in both of my theories? If so.. how am I supposed to do it?

3 Answers

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  • Bill F
    Lv 6
    1 decade ago
    Favorite Answer

    take the area of all the parts and add them up.

    Source(s): im a math teacher
  • nozar nazari
    Lv 7
    1 decade ago

    It has n sides,makes (n-2) triangles,then measure the sides of the

    triangles.

    Every triangle has sides of a,b,and c

    Call (a+b+c)/2=p

    then the area of EACH triangle is

    [p(p-a)(p-b)(p-c)]^1/2

    then add them up.

    GOOD LUCK.

  • asdf_zxcv
    1 decade ago

    The first one is right. The second one, not so much.

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