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1) Two adjacent angles of a parallelogram are(3x-4)°and(3x+16)°. Find the value of x and hence find the measure of each of its angles.
2) The sum of two opposite angles of a parallelogram is 130°. Find the measure of each of its angles.
1) Two adjacent angles of a parallelogram are(3x-4)°and(3x+16)°. Find the value of x and hence find the measure of each of its angles.
2) The sum of two opposite angles of a parallelogram is 130°. Find the measure of each of its angles.
Answers & Comments
Answer:1)100 and 80
2)65
Step-by-step explanation:1)Adjacent angles of parallelogram are supplementary(add to 180)
3x-4+3x+16=180
6x+12=180
6x=168
x=28
Therefore,3x-4=80 and 3x+16=100
2)opp. angles of parallelogram are equal
2x=130
x=65
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