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# Unknown Dimensions Using Formulas

## Compute linear measures, given edge or surface measures of rectilinear quadrilaterals.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Unknown Dimensions Using Formulas

Learn how to find the unknown dimension of a figure when the area or perimeter is given and another side length is given.

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## Unknown Dimensions Using Formulas

Learn how to use formulas to solve for unknown dimensions when given perimeter or area.

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• Practice
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## Given Perimeter or Area, Use Formulas to Solve for Unknown Dimensions Pre and Post Read

Predict and connect new information with prior knowledge of a concept. The KWL Chart can be used to brainstorm prior knowledge, generate questions about a given topic, and organize knowledge as well recall what has been read.

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• Real World Application