Question

Calculate m∠ABC and m∠CBD, what is the value of x?

Answer 1

x = 40 degrees

Explanation:

explained in picture

Answer 2

90°-x°=180°[by linear pair]

x=180°-90°

x=90°

angle cbd=45°

45°- (x+5)°=90°

x+5=90-45

x+5=45

x=45-5

x=40

angle abc

x+5

40+5

45°