# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 446 - 451 of 1042

Access detailed explanations (illustrated with images and videos) to 1042 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 450.00 -OR-

## Question 446

Edit

### Question

MCQ▾

A rectangle field has its length and breadth in the ratio 2: 3. Its area is 3.82 hectares. The cost of fencing it at Rs. 2 per meter is________.

### Choices

Choice (4)Response
a.Rs 1500
b.Rs 1100
c.Rs 1600
d.Rs 1000

## Question 447

Edit

### Question

MCQ▾

ABC is a right angled triangle with. AH is drawn perpendicular to BC where H lies on BC. If AB = 40 cm and AC = 60 cm, then BH = ________. Right-Angled Triangle ABC with AB = 40 Cm, AC = 60 Cm

### Choices

Choice (4)Response
a.40
b.Impossible to determine
c.30
d.50

## Question 448

Edit

### Question

MCQ▾

What is the ratio of the perimeter of the shaded region to the circumference of the circle?

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 449

Edit

### Question

MCQ▾

The radius of the cylinder whose lateral surface area is 610 and height 6 cm, is________.

### Choices

Choice (4)Response
a.16 cm
b.11 cm
c.10 cm
d.12 cm

## Question 450

Edit

### Question

MCQ▾

The perimeter of a trapezoid is 60 cm and its non-parallel sides are each equal to 13 cm and its altitude is 12 cm. Its area is________.

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 451

Edit

### Question

MCQ▾

The ratio of radii of two cylinders is 1: 3 and heights are in the ratio 3: 5. The ratio of their volume is________.

### Choices

Choice (4)Response
a.1: 14
b.12: 3
c.1: 12
d.1: 15