Question

find the solution please​

Answer 1

Answer:

105°

Step-by-step explanation:

Using angle sum property,

inner angle A = 180° - (65° + 40°)

= 75°

CD is a ray with a straight line.

= x + 75° = 180°

= x = 105°

Answer 2

Step-by-step explanation:

$\sf\large\underline\purple{Answer:-}$

we know that ,

▪ Sum of three angles of a triangle is 180°

$\displaystyle \sf \star \: in \: \triangle \: ABC$

$\displaystyle \sf \implies \: a + 65 \degree + 40 \degree \: = 180 \degree \: \: \\ \\ \displaystyle \sf \implies \: a + 105 \degree = 180 \degree \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \displaystyle \sf \implies \: a = 180 \degree - 105 \degree = 75 \degree$

Then,

$\displaystyle \sf \star \boxed{ \underline{ \bold{ \: x = 180 \degree - 75 \degree = 105 \degree}}}$