The diagram shows a circle centre O if lt STR 2... - WAEC Mathematics 2017 Question
The diagram shows a circle centre O. if <STR = 29 and <RST = 450, calculate the value of <STO
A
12\(^o\)
B
15\(^o\)
C
29\(^o\)
D
34\(^o\)
correct option: a
SRT = 180 - (46 + 29) sum of < s in a
= 180 - 75
= 105
SOT = 2 x 46 < at the centre is twice all the circle = 92
RTO = 180 - (96 + 43)
= 41
STO = 41 - 29
= 12\(^o\)
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