the angel of a quadrilateral are in AP with d= 10degree find the angel
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Answer:
75, 85, 95, 105
Step-by-step explanation:
given, d = 10
quadrilateral has 4 angles
⇒ n = 4
sum of all angles = 360°
⇒ Sₙ = 360
⇒ 360 = 4/2 (2a + 3×10)
⇒ 360 = 2 (2a + 30)
⇒ 90 = a + 15
⇒ a = 75
∴ angles are 75, 85, 95, 105.
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