Similar Triangles and Slope — Quiz

Question 6 • Transition Mathematics for Seniors

What is Valek’s first error?

Answer

Valek did not correctly divide 1 comma 536 by 20 going from step 3 to step 4.

Valek did not find the correct product of 32 and 48 going from step 2 to step 3.

Valek should have written the proportion in step 1 as 32 over 20 is equal to PR over 48 .

Valek should have written the cross-product in step 2 as 32 PR is equal to 20 times 48 .

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