Question

Find angle ACB, if AOB is a diameter, C is the point on the circle and angle B=40 degree...​

Answer 1

Answer:

Correct option is

C

45

∘

⇒ In △ABC,

⇒ ∠BCA=90

o

[ Angle inscribed in semi-circle ]

⇒ AC=BC [ Given ]

∴ ∠ABC=∠CAB [ Opposite angles of equal sides are equal ]

∴ ∠CAB+∠ABC+∠BCA=180

o

∴ ∠CAB+∠CAB=90

o

=180

o

∴ 2∠CAB=180

o

−90

o

∴ 2∠CAB=90

o

∴ ∠CAB=45

o

Answer 2

Answer:

Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Scientific methodology includes the following: ... Evidence. Experiment and/or observation as benchmarks for testing hypotheses.

Step-by-step explanation:

hope it's helpful,,

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