28 March, 02:29
(x + 48) °
28 March, 03:36
The Question is Incomplete still What i understood I let you Explain.
x = 78°
m∠ A = 78°
m∠ B = 56°
m∠ C = 100°
m∠ D = (x + 48) °
Be angles of Quadrilateral.
x = ?
Property of a Quadrilateral sum of the measures of the angle is 360°.
∴ m∠ A + m∠ B + m∠ C + m∠ D = 360°
Substituting above given values we get
∴ 78° + 56° + 100° + (x + 48°) = 360°
∴ x + 282° = 360°
∴ x = 360° - 282°
∴ x = 78° ... which the required answer
Know the Answer?
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» 780 56° (100° (x + 48) °