Math, asked by ritzz7, 10 months ago

plz solve this question.... frnds so that i can mark u the brainliest... ​

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Answered by Anonymous
1

Answer:

(ii) 45°

Step-by-step explanation:

∠BAD = 65˚ , ∠ABD =  70˚ , ∠BDC = 45˚

(i) In ABD,

Sum of three angles = 180°.

=> ∠BAD + ∠ABD + ∠ADB = 180°

=> 65 + 70 + ∠ADB = 180°

=> ∠ADB = 180° - 135°

=> ∠ADB = 45°

From ΔACD,

∠ADC = <ADB + ∠BDC

=> ∠ADC = 45° + 45°

=> ∠ADC = 90°

∠D makes right angle belongs in semi-circle. Therefore AC is a diameter of the circle.

(ii)

Since, Angles subtended by same segment.

=> ∠ACB = ∠ADB

=> ∠ACB = 45°

#Hope my answer help you!

Answered by rushil2721
0

Answer:

hey mate here is your answer

in the attachment

mark branilist

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