IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 471 - 476 of 1040
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Question number: 471
Question
What is the ratio of the perimeter of the shaded region to the circumference of the circle?
A Circle with Center O is Given
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Question number: 472
Question
A quadrilateral whose one diagonal is 4 cm. If the length of altitudes from opposite vertices on the diagonal is 2.5 cm and 1.5 cm, then the area of quadrilateral is ________.
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Question number: 473
Question
The number of surfaces in right circular cylinder is________.
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| Choice (4) | Response | |
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a. | 1 | |
b. | 2 | |
c. | 3 | |
d. | 4 | |
Question number: 474
Question
If the area of a cylinder with radius r = 1 and height h = 2 is equal to area of a cone with radius r = 1 and height h, the height of the cone is________.
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Question number: 475
Question
A quadrilateral whose one diagonal is 5.5 cm. If the length of altitudes from opposite vertices on the diagonal is 2.5 cm and 3.5 cm, then the area of quadrilateral is ________.
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Question number: 476
Question
ABC is a right-angled triangle with . AH is drawn perpendicular to BC where H lies on BC. If AB = 30 cm and AC = 50 cm, then BH = ________.
Right-Angled Triangle ABC with AB = 30 Cm, AC = 50 Cm
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| Choice (4) | Response | |
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a. | 50 | |
b. | 40 | |
c. | 42 | |
d. | 25 | |