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The base of a triangle is multiplied by 1/3. which of the following describes the effect of this change on the area? Help, Please!

The base of a triangle is multiplied by 1/3. which of the following describes the-example-1
User Sergiogx
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ANSWER:

The area is multiplied by 1/3

Explanation:

We have that the area of a rectangle is defined as follows:


A=b\cdot h

Now, we know that the base is 1/3 of the original base, so the new area would be affected like this:


\begin{gathered} A^(\prime)=(1)/(3)b\cdot h \\ A^(\prime)=(1)/(3)(b\cdot h) \\ A^(\prime)=(1)/(3)\cdot A \end{gathered}

Therefore, the area is multiplied by 1/3

User Tjassens
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