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1. m∠ABD=50°, m∠DBC=40° Given 2. m∠ABD+m∠DBC=m∠ABC Response area 3. Response area Substitution Property of Equality 4. Response area Simplifying 5. ∠ABC is a right angle. Response area 6. △ABC is a right triangle. Definition of right triangle

1 mABD50 mDBC40 Given 2 mABDmDBCmABC Response area 3 Response area Substitution Property of Equality 4 Response area Simplifying 5 ABC is a right angle Response class=

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karan5054

Answer:

<abd+<dbc=<Abc

50+40=90

triangle abc is a right angled triangle being one angle 90 degree

Answer:

Step-by-step explanation:

Answer:

<abd+<dbc=<Abc

50+40=90

triangle abc is a right angled triangle being one angle 90 degree

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