Question

Find the measures of ZADB and ZBDC formed between
the escalators shown at the right.

Answer 1

Explanation:

• Angles in a straight line add upto 180°

(6x + 10)° + 4x° = 180°

6x + 4x + 10 = 180

10x = 180 - 10

10x = 170

x = 17°

angle ADB = (6x + 10)°

= 112°

angle BDC = 4x

= 68°