a triangle abc is right angles at a . l is a point on bc such that al perpendicular bc.prove that angle bal is equal to angle acb
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hey
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given : ∆ ABC is right angled at A and l is a point on BC such that AL perpendicular BC
to prove : angle BAL = angle ACB
proove : In ∆ ALB and ∆ ALC
<A=<A (common)
<ALC = <ALB ( each equal to 90 degree)
AL= LA (common side)
∆ALB congruent ∆ALC by AAS criteria
Hence <BAL = <ACB ( by cpct) prooved
hope helped
__________
____
given : ∆ ABC is right angled at A and l is a point on BC such that AL perpendicular BC
to prove : angle BAL = angle ACB
proove : In ∆ ALB and ∆ ALC
<A=<A (common)
<ALC = <ALB ( each equal to 90 degree)
AL= LA (common side)
∆ALB congruent ∆ALC by AAS criteria
Hence <BAL = <ACB ( by cpct) prooved
hope helped
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trisha10433:
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