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2 answers:
QUESTION 1
The base angles of the triangle are
The two red ticks on the two sides of the triangle tell us that, the two sides of the triangle are equal and that the triangle is isosceles.
Hence the base angles of the triangle are equal.
We can therefore write the equation below and solve for x.
We group like terms to get,
This implies that,
We divide both sides by 2 to obtain,
The correct answer is A.
QUESTION 2
Before we determine which statement is true or not, we must first find the third angle.
Recall that the sum of the interior angles in a triangle is 180°.
This implies that,
We group like terms to get,
We evaluate to obtain,
Since two angles are equal, it means the triangle is isosceles. Therefore side
The correct answer is C
The base angles of the triangle are
The two red ticks on the two sides of the triangle tell us that, the two sides of the triangle are equal and that the triangle is isosceles.
Hence the base angles of the triangle are equal.
We can therefore write the equation below and solve for x.
We group like terms to get,
This implies that,
We divide both sides by 2 to obtain,
The correct answer is A.
QUESTION 2
Before we determine which statement is true or not, we must first find the third angle.
Recall that the sum of the interior angles in a triangle is 180°.
This implies that,
We group like terms to get,
We evaluate to obtain,
Since two angles are equal, it means the triangle is isosceles. Therefore side
The correct answer is C
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The expression θ = - 50° ± i · 360°, represents the family of all angles <em>coterminal</em> with - 50° angle.
<h3>What is the family of angles coterminal to a given one?</h3>
Two angles are <em>coterminal</em> if and only if their end have the <em>same</em> direction. Two <em>consecutive coterminal</em> angles have a difference of 360°. Then, we can derive an expression representing the family of all angles <em>coterminal</em> to - 50° angle.
θ = - 50° ± i · 360°,
The expression θ = - 50° ± i · 360°, represents the family of all angles <em>coterminal</em> with - 50° angle.
The statement is incomplete and complete form cannot be reconstructed. Thus, we modify the statement to determine the family of angles coterminal to - 50° angle.
To learn more on coterminal angles: brainly.com/question/23093580
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