Math, asked by samareshchakraborty9, 5 months ago

(খ) (১২
÷৩+২)(৮x৪ ÷ ৪+২)​

Answers

Answered by sivasridhar
4

Given:

Three angles of the quadrilateral are 50°, 130° and 120°.

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To find:

Fourth angle of the quadrilateral.

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Solution:

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☯ Let fourth angle of quadrilateral be x.

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As we know that,

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Sum of all angles of a quadrilateral is 360°.

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Therefore,

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➯ 50° + 130° + 120° + x = 360°

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➯ 300° + x = 360°

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➯ x = 360° - 300°

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➯ x = 60°

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∴ Hence, Fourth angle of the quadrilateral is 60°.

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★Moretoknow★

Quadrilateral: - "Quad" means four and "lateral" means sides. All closed figures with four sides are called quadrilaterals.

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★ Properties of quadrilateral:

4 vertices and 4 sides enclosing 4 angles

2 - dimensional closed figure.

The sum of all interior angles of a quadrilateral

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