समीकरणों x = 5, y = 6 और 6x + 5y = 30 से बने त्रिभुज का क्षेत्रफल ज्ञात है? - - समीकरणों x = 5 , y = 6 Aur 6x + 5y = 30 Se Bane TriBhuj Ka Shetrafal Gyat Hai ? Maths in hindi, co-ordinate geometry 10 question answers in hindi pdf 15 questions in hindi, Know About 12 Maths online test Maths notes in hindi quiz book 21