# Could someone please walk me through this? I would really appreciate it. Trigonometry

• Oct 21st 2013, 12:58 PM
smyatsallie
Could someone please walk me through this? I would really appreciate it. Trigonometry
The Aztec people of pre-Columbian Mexico used the Aztec Calendar. it consisted of a 365-day calendar cycle and a 260-day ritual cycle. In the stone carving of the calendar, the second ring from the centre showed the days of the month, numbered from one to 20. Suppose the calendar was placed on a Cartesian plane, as shown below.

Attachment 29537

a.) The blue angle marks the passing of 12 days. Determind the measure of the angle.

b.) How many days would have passed if the angle had been drawn in quadrant II, using the same reference angle as in part a?

c.) Keeping the same reference angle, how many days would have been passed if the angle had been drawn in quadrant IV?
• Oct 21st 2013, 01:39 PM
Soroban
Re: Could someone please walk me through this? I would really appreciate it. Trigonom
Hello, smyatsallie!

Quote:

The Aztec people of pre-Columbian Mexico used the Aztec Calendar.
It consisted of a 365-day calendar cycle and a 260-day ritual cycle.
In the stone carving of the calendar, the second ring from the centre showed the days of the month,
numbered from one to 20. Suppose the calendar was placed on a Cartesian plane, as shown below.

Attachment 29537

(a) The blue angle marks the passing of 12 days. .Determine the measure of the angle.

(b) How many days would have passed if the angle had been drawn in quadrant II,
. . using the same reference angle as in part (a)?

(c) Keeping the same reference angle, how many days would have been passed

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