Question

find the angle abc in the following figure ​

Answer 1

Answer:

60⁰

Step-by-step explanation:

angle BAC=exterior angle BAC

∴angle BAC= 45⁰

Exterior angle C=angle BAC+angle ABC(exterior angle property)

∴105⁰=45⁰+x

∴105⁰-45⁰=x

∴x=60⁰

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