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jolli1 [7]
3 years ago
13

PLEASE HELP!!!! I’m stuck What is the measure of What is the measure of

Mathematics
1 answer:
choli [55]3 years ago
6 0

Answer:

∠A = 94º

∠C = 86º

Step-by-step explanation:

You just need to know that the sum of the two angles in a parallelogram must be equal to 180º. Let's make an equation.

(5y-3)+(3y+27)=180

Solve;

5y-3+3y+27=180

Combine like terms;

8y+24=180

Subtract 24

8y=180-24

8y=156

Divide by 8

y=\frac{156}{8}

Simplify.

y=\frac{39}{2}

Replace;

∠A = 5y-3

5(\frac{39}{2})-3\\ \frac{195}{2}-3\\ \frac{195-2*3}{2}\\

\frac{195-6}{2}

\frac{189}{2} =94.5≅ 94

----------------------------------------------------------------------------------------------

∠C =

3y+27\\3(\frac{39}{2})+27

\frac{117}{2}+27

\frac{117+27*2}{2}

\frac{117+54}{2}

\frac{171}{2}=85.5≅86

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