Advertisements
Advertisements
Question
If a bicycle wheel has 48 spokes, then the angle between a pair of two consecutive spokes is ______.
Options
`(5 1/2)`
`(7 1/2)`
`(2/11)`
`(2/15)`
Solution
If a bicycle wheel has 48 spokes, then the angle between a pair of two consecutive spokes is `(7 1/2)`.
Explanation:
The total angle is 360° as it is a complete circle.
Now there are 48 spokes which also means the angle between two consecutive spokes is
`360/48 = 15/2 = 7 1/2`
APPEARS IN
RELATED QUESTIONS
Complete of the following, so as to make a true statement:
The number of pairs of opposite angles of a quadrilateral is .......
In Fig. 16.19, ABCD is a quadrilateral.
How many pairs of opposite angles are there?
The measure of angles of a hexagon are x°, (x − 5)°, (x − 5)°, (2x − 5)°, (2x − 5)°, (2x + 20)°. Find the value of x.
Complete the following statement by means of one of those given in brackets against each:
f consecutive sides of a parallelogram are equal, then it is necessarily a ..................
In parallelogram ABCD, its diagonals intersect at point O. If OA = 6 cm and OB = 7.5 cm, find the length of AC and BD.
D and E are the mid-points of the sides AB and AC respectively of ∆ABC. DE is produced to F. To prove that CF is equal and parallel to DA, we need an additional information which is ______.
Construct a quadrilateral NEWS in which NE = 7 cm, EW = 6 cm, ∠N = 60°, ∠E = 110° and ∠S = 85°.
In given figure, What is AC – EC?
Using the information given, name the right angles in part of figure:
AC ⊥ CD
Investigate :
Use strips and fasteners to make a triangle and a quadrilateral.
Try to push inward at any one vertex of the triangle. Do the same to the quadrilateral. Is the triangle distorted? Is the quadrilateral distorted? Is the triangle rigid?
Why is it that structures like electric towers make use of triangular shapes and not quadrilaterals?