दी गई आकृति में एक वृत की दो प्रतिच्छेदी जीवायें AB तथा CD है यदि ∠CAB = 30° तथा ∠BCD = 70° हो तो ∠CBD = ? - - Dee Gayi Aakriti Me Ek Vrit Ki Do प्रतिच्छेदी जीवायें AB Tatha CD Hai Yadi ∠CAB = 30° Tatha ∠BCD = 70° Ho To ∠CBD = ? Maths in hindi, circles 80° question answers in hindi pdf 40° questions in hindi, Know About 60° Maths online test Maths notes in hindi quiz book 100°