Answer:
A = 45
B = 90
C = 45
Step-by-step explanation:
Isosceles triangles have two side that are the same and two angles that are the same. Since one angle, B, is a right angle, 90°, that means the other 2 angles, A & C, added together equal 90°.
Divide 90 by 2 and you 45° for both A and C.
Answer:
<h2><u><em>
-3x + 9</em></u></h2>
Step-by-step explanation:
(6x + 14) - (9x + 5) =
6x + 14 - 9x - 5 =
<u><em>-3x + 9</em></u>
The missing statements with regard to the mathematical proof are:
- "inscribed angles; one half the measure of their intercepted arcs" (Option D); and
- inscribed angles; equal to the measure of their intercepted arcs (Option B).
<h3>What are intercepted arcs?</h3>
It is to be noted that an intercepted arc is the arc that sits inside the inscribed angle. See the attached image.
Thus, it is correct to state that
The missing statements with regard to the mathematical proof are:
- "inscribed angles; one half the measure of their intercepted arcs" (Option D); and
- inscribed angles; equal to the measure of their intercepted arcs (Option B).
Learn more about mathematical proof at:
brainly.com/question/25927269
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