Jordana was shown this diagram of an isosceles trapezoid and its reduction. She was asked to find the perimeter of the reduced trapezoid. Her work is shown below. Figures not drawn to scale.Jordana’s WorkScale factorSide ASide B PerimeterWhere, if any, did Jordana first make a mistake in her work?

Question

Jordana was shown this diagram of an isosceles trapezoid and its reduction. She was asked to find the perimeter of the reduced trapezoid. Her work is shown below.     Figures not drawn to scale.Jordana’s WorkScale factorSide ASide B      PerimeterWhere, if any, did Jordana first make a mistake in her work?

Revolt · Accepted Answer

Jordana made a mistake when she calculated the length of side B.

Determining a Scale Factor

Jordana was shown this diagram of an isosceles trapezoid and its reduction. She was asked to find the perimeter of the reduced trapezoid. Her work is shown below. Figures not drawn to scale.Jordana’s WorkScale factorSide ASide B PerimeterWhere, if any, did Jordana first make a mistake in her work?

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