दी गई आकृति में वृत का केंद्र O है यदि ∠BCD = 120° हो तो ∠ABD कितना होगा? - - Dee Gayi Aakriti Me Vrit Ka Kendra O Hai Yadi ∠BCD = 120° Ho To ∠ABD Kitna Hoga ? Maths in hindi, circles 30° question answers in hindi pdf 35° questions in hindi, Know About 60° Maths online test Maths notes in hindi quiz book 70°