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Use the picture shown to solve for inequalities in two triangles

Use the picture shown to solve for inequalities in two triangles-example-1
User Pesehr
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1 Answer

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GIVEN

Two triangles ABC and ACD where two corresponding sides of the two triangles are equal.

SOLUTION

The two triangles have equal sides such that:


\begin{gathered} AB=AD \\ and \\ AC=AC \end{gathered}

By this, the length of the remaining sides BC and DC are related such that the side opposite the greater angle has the greater length.

Since
BC>DCSubstitute known values into the inequality:


\begin{gathered} DC=11x-33 \\ BC=77 \\ \therefore \\ 77>11x-33 \end{gathered}

Solving the inequality:


\:x<10

Recall that the side DC has to be greater than 0. Therefore:


\begin{gathered} 11x-33>0 \\ \therefore \\ x>3 \end{gathered}

Combining both solutions:

[tex]3ANSWER
User David Neiss
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