Answer:
x=127°
y=53°
Step-by-step explanation:
to understand this
you need to know about:
tips and formulas:
- sum of any polygon interior angles:(n-2)×180°
- the given shape is a heptagon
- a line contains 180°
let's solve
step-1: find the sum of the polygon interior angles
=(7-2)×180°
=5×180°
=900°
step-2: find x
according to the question
113+112+123+168+99+148+x=900
=>773+x=900
=>x=900-773
therefore
x=127
according to the question
127+y=180
=>y=180-127
therefore
y=53
