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aalyn [17]
3 years ago
12

JKLM is a parallelogram. Find m

Mathematics
2 answers:
creativ13 [48]3 years ago
7 0

Answer:

<h2>m∡L = 51°</h2>

Step-by-step explanation:

In any parallelogram, the sum of the angle measures on one side is 180°.

Therefore we have the equation:

(2z-3)^o+(5z-6)^o=180^o

<em>Let's skip the degree marks and parentheses</em>

2z-3+5z-6=180             <em>combine like terms</em>

(2z+5z)+(-3-6)=180

7z-9=180            <em>add 9 to both sides</em>

7z-9+9=180+9

7z=189           <em>divide both sides by 7</em>

\dfrac{7z}{7}=\dfrac{189}{7}

z=27

Put the value of <em>z</em> to the expression <em>m∡L = (2z - 3)°</em>:

m\angle L=(2\cdot27-3)^o=(54-3)^o=51^o

Sauron [17]3 years ago
6 0

Good evening ,

Answer:

<h2>m∠L = 51°</h2><h2 />

Step-by-step explanation:

the sum of measures of angles of a parallelogram = 360°

2[(2z-3)+(5z-6)] = 360

⇔ 2[7z - 9] = 360 ⇔ 14z - 18 = 360 ⇔ 14z = 378 ⇔ z = 27

m∠L = 2z - 3 = 2(27) - 3 = 54 - 3 = 51.

:)

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