Explore
Explore
We've learned a lost about proportions this unit. In this lesson, we will further our knowledge. But first, a brainteaser.....
Look at the diagram of triangle ABC. DE divides sides AB and BC proportionally. Students are asked to find the value of EC.
Beth sets up her proportions as AD/DB = AE/EC.
Drew sets his proportions up as BD/DA = CE/EA.
Mark sets his proportions up as DB/AB = EC/AC.
Who started the problem correctly? What is the measure of the side? Post your answer with an explanation in the 7.04 Discussion: Explore. Read the answers of two other students and disagree or agree with them, using evidence to support your answers.
At the end of this lesson, student will be able to:
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