Radius
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Q.
Length of tape required to cover the edges of a semicircular disc of radius is
Q.
The length and breadth of a rectangular courtyard is 75 m and 32 m. Find, the cost of leveling it at the rate of $3 per m2. Also, find the distance covered by a boy to take 4 rounds of the courtyard.
$7000, 876 m
$6000, 856 m
$7200, 856 m
$7100, 856 m
Q. 9 balls of diameter 2 cm each are packed tightly in a box as shown. The height of the box is :
![296627_b3f7a4ede8b24af5a2b864abc177aef5.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/296627_b3f7a4ede8b24af5a2b864abc177aef5.png)
![296627_b3f7a4ede8b24af5a2b864abc177aef5.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/296627_b3f7a4ede8b24af5a2b864abc177aef5.png)
- 2√3+3
- 2√3+2
- 2+√3
- 4
Q. In ΔABC, AB=BC=6 cm. A circle is drawn with the center at B and a radius of 2 centimeters. What is the scale factor of the triangle formed by the point B and the points where the circle intersects ΔABC?
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1759275/original_image89.png)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1759275/original_image89.png)
- 13
- 12
- 23
- 1