IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 354  357 of 919
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Question number: 354
» Linear Equations in Two Variables
Question
In the figure, the value of x if , is ________
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Question number: 355
Question
Triangle PAB is formed by three tangents to circle with center O and, then angle AOB equals ________
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Question number: 356
Question
A wooden article was made by scooping out a hemisphere from each end of a solid cylinder. If the height of the cylinder is 20 cm, and its base is of radius 7.5 cm, find the total surface area of the article.
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Question number: 357
Question
A, B, C and D are four points on a circle. AC and BD intersect at a point E such that and, then angle is ________
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