Skip to content
Philoid
Browse Saved
Back to chapter
Mathematics
4. Mensuration
Home · Class 9 · Mathematics · Ref. Book · 4. Mensuration
Prev
Next
Q1 of 64 Page 81

The length of the arc of a sector having central angle 90° and radius 7 cm is

Given:

length of arc = ?


radius = 7cm


Arc length =





⇒ Arc length = 11cm


Option (C) is correct.

More from this chapter

All 64 →
6

How many hollow blocks of size 30cm x 15cm x20cm are needed to construct a wall 60m in length, 0.3m in breadth and 2m in height.

7

Find the cost of renovating the walls and the floor of a hall that measures 10m x 45m x 6m if the cost is ₹48 per square meter.

2

If the radius and arc length of a sector are 17 cm and 27 cm respectively, then the perimeter is

3

If the angle subtended by the arc of a sector at the center is 90°, then the area of the sector in square units is

Questions · 64
4. Mensuration
1 1 1 1 1 2 2 2 3 3 3 3 4 4 4 5 5 6 6 7 7 8 8 9 10 11 12 13 14 1 1 1 1 1 2 2 2 3 4 5 6 7 8 9 1 1 1 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved