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Do the interior angles of a quadrilteral always add up to the same thing? Explain why you think so.

User Mebada
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1 Answer

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The interior angles of a quadrilateral always does always add up to the same thing, 360°. They add up to the same thing because a quadrilateral is made up of 2 triangles and one triangle is 180° so since there are two triangles 180° + 180° is 360°.
User Lzh
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