Triangle abc is an isoscles right angled triangle in which a equals to 90 degrre and calcutte equals b answer is
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Given: ABC is a right-angled triangle.
in angle A =90 degree and AB=AC
Draw AD perpendicular from point A on line BC
In ΔADC and ΔADB
AB=AC ...Given
AD=AD ...Common side
∠ADC=∠ADB=90
o
∴ΔADC≅ADB ....RHS test
∴∠B=∠C ....CACT [henceproved]
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