Question

Please answer my math question only the b part I have done the a part so only answer the b part​

Answer 1

c = 112 , d = 29

Explanation:

c and 68 are a linear pair and sum to 180° , that is

c + 68 = 180 ( subtract 68 from both sides )

c = 112

the 3 angles 30, 3d - 5 and 68 lie on straight line AOB and sum to 180° , so

30 + 3d - 5 + 68 = 180

3d + 93 = 180 ( subtract 93 from both sides )

3d = 87 ( divide both sides by 3 )

d = 29