Question

12. In ∆ABC, B=90°, A= C and BC=10cm, then find the value of tan 45º.​

Answer 1

Answer:

b=90°,a=c

so,a=c=45°

also,bc=ab (a=c)

hence,tan theta=perpendicular/base

tan theta =ab/bc

tan theta=bc/bc (ab=bc)

tan theta=1

tan theta=tan45°

theta=45°

so,tan45°=1

Answer 2

Answer:

tan 45⁰ = 1

Step-by-step explanation:

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