Question

Please solve it fast Question no 14​

Answer 1

Answer:

90°

Explanation:

Since AB is parallel to DC,

ABC + BCD = 180°

(since OB is the bisector of ABC then ABO = CBO and OC is the bisector of BCD then DCO = BCO)

ABO + CBO + DCO + BCO = 180°

2CBO + 2BCO = 180°

2 (CBO + BCO) = 180°

CBO + BCO = 180°/2

CBO + BCO = 90° ----- a

In ∆ABC,

BOC + CBO + BCO = 180° (angle sum property)

BOC + 90° = 180° (from ----- a)

BOC = 180° - 90°

BOC = 90°

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Answer 2

ANSWER :

Ciliated epithelium is found in the lining of trachea.

Function: The Celia keep lashing and move the materials which enters this organs

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