PLEASE HELP! Shalini found the sum of the measures of the interior angles of the triangle to be 175°. She knows the sum is suppo
sed to be 180°. What was Shalini’s error? m∠A = 45° m∠B = 85° m∠C = 45° Shalini did not add the sum of the 3 angles correctly.
2 answers:
Answer:
its c
Step-by-step explanation:
because i said
Answer: The answer is angle c is 45 degrees or C
Step-by-step explanation:
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A=LW, using W from above makes this
A=L(L-2)/2
2A=L^2-2L
L^2-2L-2A=0, given A=84
L^2-2L-168=0
(L-14)(L+12)=0, since L>0
L=14
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(W=(L-2)/2=6 ft)
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