the angles of a quadrilateral are in the ratio 2: 3:4:6find the measure of the angles
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Answer:
Step-by-step explanation:
The angles are 60° , 80° , 100°, 120°
The special name is Trapezium
Step-by-step explanation:
Let-
∠1 = 3x
∠2 = 4x
∠3 = 5x
∠4 = 6x
As we all know SUM of all 4 SIDES of a Quadrilateral = 360
⇒ ∠1 + ∠2 + ∠3 + ∠4 = 360
⇒ 3x + 4x + 5x + 6x = 360
⇒ 18x = 360
⇒ x = 360/ 18
= 20
Therefore the angles are :
P = ∠1 = 3*20 = 60°
Q = ∠2 = 4*20 = 80°
R = ∠3 = 5*20 = 100°
S = ∠4 = 6*20 = 120°
Here the opposite angles are ∠1 and ∠4 , ∠2 and ∠3
P + S = ∠1 + ∠4 = 60° + 120° = 180°
Q + R = ∠2 + ∠3 = 80° +100° = 180°
⇒ PS || QR and PS = QR
Since one pair of opposite sides are equal and parallel the special name given is TRAPEZIUM
hope it helps you..
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