IMO- Mathematics Olympiad Class 8: Questions 473 - 478 of 1029
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1029 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
Question number: 473
Question
The number of surfaces in right circular cylinder is________.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 1 |
|
| b. | 4 |
|
| c. | 3 |
|
| d. | 2 |
|
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________.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
|
|
| b. |
|
|
| c. |
|
|
| d. |
|
|
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 ________.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
|
|
| b. |
|
|
| c. |
|
|
| d. |
|
|
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
Find out BH of a right-angled triangle ABC using given measure when AH is perpendicular to BC
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 50 |
|
| b. | 42 |
|
| c. | 40 |
|
| d. | 25 |
|
Question number: 477
Question
A right cylindrical vessel is full with water, how many right cones having same diameter and height as that of right cylinder will be needed to store that water?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 3 |
|
| b. | 4 |
|
| c. | 2 |
|
| d. | 5 |
|
Question number: 478
Question
The ratio of radii of two cylinders is 1: and heights are in the ratio 3: 2. The ratio of their volume is________.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 1: 4 |
|
| b. | 1: 2 |
|
| c. | 3: 4 |
|
| d. | 2: 3 |
|