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one angle of a parallelogram is of measure 70 degree find the measure of the remaining angle of the parallelogram

Posted by Satyam Garg 5 years, 3 months ago

CBSE > Class 08 > Mathematics

4 answers

Krishang Patil 5 years, 3 months ago

If angle A is 70°, the opposite angle(angle C) will also be 70° as opposite angles are equal in a parallelogram... Now angle B and angle D will be of same measure... Let them be 'x' A+B+C+D=360° (angle sum property of a parallelogram) 70+x+x+70=360° 2x+140=360° 2x=360-140 2x=220 x=220÷2 =110 Thus, angle B=110÷2 =55° angle C=70° angle D=110÷2

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Mohit Kumar 5 years, 3 months ago

70° (Opposite angles of a parallelogram are equal) 70°+B =180°(Adjacent angles of a parallelogram are supplementary) B=180-70=110° 110 (Opposite angles of a parallelogram are equal)

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Satyam Garg 5 years, 3 months ago

very important

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Satyam Garg 5 years, 3 months ago

pleaase

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Posted by Monika 8B 5 months, 3 weeks ago

CBSE > Class 08 > Mathematics