to prove that angles opposite to equal sides of an equilateral triangle are equal
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Use the axiom of isosceles triangle
That angles opposite to equal sides are equal and prove it
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Answer:given-:ab=ac
To prove-:angle (B)= angle(C)
Construct -:ad bisect be
Proof-:IN TRIANGLE ABD AND AND
=AB=AC(GIVEN)
=AD=AD (COMMON)
ANGLE BAD= ANGLE CAD (BY CONSTRUCT)
=TRIANGLE ADB=ADC(SAS)
=ANGLE (B) = ANGLE (C) BY CPCT
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