ABCD is a cyclic quadrilateral in which : (i) BC || AD, ADC=110o and �

1.	ABCD is a cyclic quadrilateral in which : (i) BC \|\| AD, ADC=110o and ∠BAC=50o. Find ∠DAC. (ii) ∠DBC=80o and ∠BAC=40o. Find ∠BCD. (iii) ∠BCD=100o and ABD=70o. Find ∠ADB.
Answer» ABCD is a cyclic quadrilateral in which : (i) BC \|\| AD, $A D C = 110^{o} a n d ∠ B A C = 50^{o}$ . Find $∠ D A C$ . (ii) $∠ D B C = 80^{o} a n d ∠ B A C = 40^{o} .$ Find $∠ B C D$ . (iii) $∠ B C D = 100^{o} a n d A B D = 70^{o}$ . Find $∠ A D B$ .

ABCD is a cyclic quadrilateral in which : (i) BC || AD, ADC=110o and ∠BAC=50o. Find ∠DAC. (ii) ∠DBC=80o and ∠BAC=40o. Find ∠BCD. (iii) ∠BCD=100o and ABD=70o. Find ∠ADB.

Answer»

ABCD is a cyclic quadrilateral in which :

(i) BC || AD, $A D C = 110^{o} a n d ∠ B A C = 50^{o}$ . Find $∠ D A C$ .

(ii) $∠ D B C = 80^{o} a n d ∠ B A C = 40^{o} .$ Find $∠ B C D$ .

(iii) $∠ B C D = 100^{o} a n d A B D = 70^{o}$ . Find $∠ A D B$ .