Challenger App

No.1 PSC Learning App

1M+ Downloads
The minute hand of a watch is 1.5 cm long. How far does its tip move in 40 minutes ? (use ∏=3.14)

A4.71 cm

B6.28 cm

C9.42 cm

D3.14 cm

Answer:

B. 6.28 cm

Read Explanation:

r = 1.5 cm 𝚹 = 240° = ∏/180 x 240 = 4∏/3 l= r𝚹 = 1.5 x 4∏/3 =6.28 cm


Related Questions:

If 4θ is an acute angle, and cot 4θ = tan (θ - 5°) , then what is the value of θ?

AB = 6, AC = 4, ∠ BAC = 600 എന്നീ വശങ്ങളുള്ള സമാന്തരികത്തിന്റെ വിസ്തീർണ്ണം കണ്ടെത്തുക.

1000114769.jpg
If the arcs of the same lengths in two circles subtend angles 65° and 110° at the centre, find the ratio of their radii.

The least value of 8 cosec2θ + 25 sin2 θ is:

A shadow of a tower standing on a level ground is found to be 40√3 meters longer when the Sun's altitude is 30° than when it is 60°. The height of the tower is: