AnswersELPGEQ1 MJ Grade 8 Pre-Algebra - 1205070 HCPS V24Unknown Leg Lengths in Right TrianglesQuestion 23
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Unknown Leg Lengths in Right Triangles
Question 23 • ELPGEQ1 M/J Grade 8 Pre-Algebra - 1205070 HCPS V24
Lewis needed to find the difference in lengths between the hypotenuse and the longest leg of this triangle. His work is shown below.What errors did Lewis make? Check all that apply.
Answer
A
He simplified incorrectly. It should be 20 instead of 200.
B
He found the difference between the hypotenuse and the short leg instead of the long leg.C
He evaluated incorrectly. It should be .
D
He evaluated incorrectly. It should be .
E
He should not have taken the square root of each side to get rid of the exponent.