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Answered by
3
Answer:
55°,20°
Step-by-step explanation:
Given, AB is a diameter and ∠ACB = 90°.
(i)
In ΔABC,
⇒ ∠A + ∠B + ∠C = 180°
⇒ 35° + ∠CBA + 90° = 180°
⇒ ∠CBA = 180° - (90° + 35°)
⇒ ∠CBA = 180° - 125°
⇒ ∠CBA = 55°.
∴∠QCB = 35°.
(ii)
From ABQ,
⇒ ∠ABC + ∠CBQ = 180°
⇒ 55° + ∠CBQ = 180°
⇒ ∠CBQ = 125°
Now,
∠CQA = 180° - (QCB + CBQ)
= 180° - (35° + 125°)
= 180° - 160°
= 20°
Hope it helps!
Answered by
0
Step-by-step explanation:
In ΔABC,
⇒ ∠A + ∠B + ∠C = 180°
⇒ 35° + ∠CBA + 90° = 180°
⇒ ∠CBA = 180° - (90° + 35°)
⇒ ∠CBA = 180° - 125°
⇒ ∠CBA = 55°.
∴∠QCB = 35°.
(ii)
From ABQ,
⇒ ∠ABC + ∠CBQ = 180°
⇒ 55° + ∠CBQ = 180°
⇒ ∠CBQ = 125°
Now,
∠CQA = 180° - (QCB + CBQ)
= 180° - (35° + 125°)
= 180° - 160°
= 20°
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