why triangle chapter of class 9 difficult to understand explain with proper examples answer should not be short plss reply fast
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Triangle chapter of class 9 is not so difficult
first you must know their properties and their formula
what formula is taken to solve the problem
eg In traingle ✓A =120° and AB =AC. find ✓B and ✓C
we have , AB =AC
✓B= ✓C ( angle opposite to equal sides are equal)
In tri ABC , ✓A+✓B+✓C = 180°
✓A+✓B+✓B = 180°
120°+ 2✓B=180°
2✓B =60°
✓B= 30°
hence, ✓B= ✓C = 30°
i hope you understand
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