Question

Pls let me know the answer of both this question ... pls make it possible with the required solution!

Answer 1

Answer:

∠ACB + ∠ADB = 180°

Step-by-step explanation:

From figure:

⇒ ∠CAB = ∠CDA

⇒ ∠CBA = ∠CDB

In ΔACB,

⇒ ∠ACB + ∠CAB + ∠CBA = 180° {Sum of angles = 180°}

⇒ ∠ACB + (∠CDA + ∠CDB) = 180°

⇒ ∠ACB + ∠ADB = 180°

Hope it helps!

Answer 2

∠ACB + ∠ADB = 180°

Step-by-step explanation:

From figure:

⇒ ∠CAB = ∠CDA

⇒ ∠CBA = ∠CDB

In ΔACB,

⇒ ∠ACB + ∠CAB + ∠CBA = 180° {Sum of angles = 180°}

⇒ ∠ACB + (∠CDA + ∠CDB) = 180°

⇒ ∠ACB + ∠ADB = 180°

@skb