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BraedynM7866
31.01.2023 •
Mathematics
Sketch each angle then find the measure of the reference angle for:A) -140 degreesB) 310 degree C) 115 degrees
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Ответ:
Solution:
The formula for reference angle formula is
The first angle is given below as
To figure out the quadrant under which it falls we will add 360 to it
Hence,
-140 degrees fall under the THIRD QUADRANT as shown in the graph below
The reference angle for -140 degrees is
Part B:
The angle given is
310 degrees fall under the 4th quadrant as shown in the image below
The reference angle for 310 degrees
Part C:
The angle given here is
The sketch is given below as
As the angle falls under the SECOND QUADRANT
The reference angle for 115 degrees is
Ответ:
based on the given circle d with angles adc and arc ac, here is how we are going to look for the measure of angle abc:
arc ac=angle adc
8x-8=7x+2
8x-7x=2+8
x=10
< adc=7(10)+2=72
< abc=72/2=36
so the answer for this is 36 degrees.