1 The measure of three angles of quadrilateral are 60°, 70° and 80°. Find the measure of the fourth angle of the quadrilateral.​

Question

1 The measure of three angles of quadrilateral are 60°, 70° and 80°.
Find the measure of the fourth angle of the quadrilateral.​

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Clara 1 month 2021-08-11T15:39:21+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-11T15:40:40+00:00

    Answer:

    let 4th angle=x

    60 +70+80+x=360(sum of angle of all angle of quad is 360

    210+x=360

    x=360-210

    x=150

    0
    2021-08-11T15:41:15+00:00

    Answer:

    Sum of all angles of any quadrilateral is 360°

    So,

    let the missing angle be x

    60+70+80+x=360°

    210+x=360

    x=360-210

    x=150°

    The measure of the fourth angle of the qquadrilateral is 150°

    Hope it helps you dear

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