Question

the hands of a clock have lengths 3cm and 5cm. Find the distance between the tips of the hands at 4 o´clock. Worked solutions please

Answer 1

The angle made by the hands is 120 degrees. How about the law of cosines to find the missing side of the triangle?

Answer 2

how do i measure that angle?

Answer 3

\[c^2=a^2+b^2-2bc \cos C\]

Answer 4

How many degrees in a circle?

Answer 5

360

Answer 6

Since there are 12 hours on the clock face, divide 360 by 12.

Answer 7

Since there are 12 hours on the clock face, divide 360 by 12.

Answer 8

thaanks! :)

Answer 9

Do you understand?

Answer 10

When the hand moves from the 12 to the 1, it goes 30 degrees. So when it goes from the 12 to the 4 it goes 4 times 30 or 120 degrees.

Answer 11

yes! thank you!

Answer 12

yw