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Maru [420]
3 years ago
9

Camden is creating a model of a pyramid. The model created will need to be scaled up from the blueprint.

Mathematics
2 answers:
UNO [17]3 years ago
8 0

Answer:

A) DC equals EC times AC all over BC.

Step-by-step explanation:

We know that:

DE\parallel AB

Then by corresponding angles:

\angle CAB\cong \angle CDE\text{ and } \angle CBA\cong \angle CED

So, by AA-Similarity:

\Delta CDE\sim \Delta CAB

Corresponding sides of similar triangles are in proportion. Hence:

\displaystyle \frac{DC}{AC}=\frac{EC}{BC}

By multiplying both sides by AC:

\displaystyle DC=\frac{EC\cdot AC}{BC}

DC is equal to EC times AC over BC.

Hence, our answer is A.

lorasvet [3.4K]3 years ago
5 0
DC = BC EC AC Figure: By similar triangle, It follows . that AC DC = BC EC Solve for DC AC DC = BC EC
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