Answer:
-51.4
Step-by-step explanation:
Answer:
Last one
Step-by-step explanation:
took the test
The length of b and angle B and C are 3cm, 45 degrees and 79 degrees respectively.
<h3>How to determine the parameters</h3>
To determine the angles and length of sides, we use the sine rule
The sine rule is thus:

Given;
Let's find angle C

cross multiply
0. 682 × 3. 6 = sin C × 2. 5
sin C = 2. 4552/ 2. 5
C = 
C = 79°
To find length of b

substitute the values


b = 2. 59 cm
b = 3cm
To find angle B, we have

cross multiply
0. 682 × 2. 59= sin B × 2. 5
sin B = 0. 7065

B = 45°
Hence, the length of b and angle B and C are 3cm, 45 degrees and 79 degrees respectively.
Learn more about sine rule here:
brainly.com/question/12827625
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Answer:
see explanation
Step-by-step explanation:
To express a fraction in simplest form
Divide numerator and denominator by largest common factor of both
← divide by 6
=
← in simplest form
← divide by 3
=
← in simplest form
Complementary angles add up to 90°.
You are given one angle that is 63.6°.
Let's make the other angle "x".
63.6 + x = 90
To find x, all you have to do is subtract the other angle (63.6) from 90.
90 - 63.6 = 26.4
x = 26.4
The measure of the complementary angle is 26.4°.