Answer:
21
Step-by-step explanation:
The picture is not clear... the Question has got cut at the sides .... please take the picture properly and the post the Question again... please

No they are not unequal... i. e. the two wires A and B are equal .
of A =
of B
=>
× A = B
=> 1 × A = B
=> A = B
<em>:</em><em>.</em> The length of A = the length of B .

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Answer:
the acute angle measures 30 degrees
Step-by-step explanation:
the right angle is 90. 90 and 60 is 150. 180 minis 150 is 30.
Answer:

Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.