A) scalene
B) right angled
C) obtuse angles
D) actute angled
Correct Answer: B
Solution :
Let \[x,y\] and \[z\] is the angles, where \[x=y+z\] \[x+y+z=180{}^\circ \] (Angle sum property) \[(y+z)+y+z=180{}^\circ \] \[2(y+z)=180{}^\circ \] \[y+z=\frac{180{}^\circ }{2}=90{}^\circ \] \[x=90{}^\circ ,\] hence triangle is right angled.You need to login to perform this action.
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