What is the value of x to the nearest tenth? A) 9.2 B) 7.2 C) 4.8 D) 12.0

Ole EH Dufour asked Aug 4, 2022

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40 votes

What is the value of x to the nearest tenth?
A) 9.2
B) 7.2
C) 4.8
D) 12.0

Ole EH Dufour asked Aug 4, 2022

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17 votes

Answer:

B. 7.2

Explanation:

radius=24÷2= 12

other line =19.2÷2=9.6 because line from centre bisects chord and is perpendicular to it

Therefore: X²=√ 12²-9.6² ( theorem of Pythagoras)

X=7.2

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