Question

Guys please answer my question Iam in my exam please

Answer 1

value of x is option 3) 80 degree. as the area of a triangle = 180 degree, B, C, D is a triangle, B+C=100 degree. 180 degree - 100 degree = 80 degree. So ans is 80 degree. ( If it's helpful, please mark me as brainliest )

Answer 2

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GIVEN:

$\angle \: CBD \: = 70 ° \\ \angle \: BCD = 30 °$

TO FIND :

$\angle \: CDB = ?$

SOLUTION:

$\angle \: CBD \: + \angle \: BCD + \angle \: CDB = 180°$

--the sum of angles of a triangle is 180°

$70° + 30° + x = 180°$

$x = 180° - 100°$

$x = 80°$