## micabar2696 Group Title 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 one year ago one year ago

1. Mertsj Group Title

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2. Mertsj Group Title

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

3. micabar2696 Group Title

how do i measure that angle?

4. Mertsj Group Title

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

5. Mertsj Group Title

How many degrees in a circle?

6. micabar2696 Group Title

360

7. Mertsj Group Title

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

8. Mertsj Group Title

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

9. micabar2696 Group Title

thaanks! :)

10. Mertsj Group Title

Do you understand?

11. Mertsj Group Title

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.

12. micabar2696 Group Title

yes! thank you!

13. Mertsj Group Title

yw