Answer:
a= 65°
c= 65°
d=115°
b= 115°
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a=65(corresponding angles)
a=c=65(vertically opposite angles)
d+65=180(sum of linear pair)
or,d=180-65
Hence d=115
a+b=180(sum of linear pair)
b=180-65
b=115
Therefore,a=65,b=115,c=65 and d=115.
Step-by-step explanation:
3/10
12 / 20 = 0.6 holes per hour