Giving 20 pts!!
2 answers:
1. Obtuse Angle (see image 1). Obtuse angles are angles that are more than 90° in measurement but less than 180°
2. Right Angle (see image 2). Right angles are angles that have the measurement of 90°, and is formed by an intersection of two perpendicular straight lines.
3. Acute Angle (see image 3). Acute angles are angles that are less than 90° in measurement.
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hope this helps
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BO is double that of DO. In other words, BO is two times longer than DO. The answer is choice B
For example, if DO were 3 units long, then BO would be 6 units long (2*3 = 6). This works because the triangles DCO and BAO are similar triangles. The corresponding sides are in the same ratio or proportion to one another. The larger triangle (BAO) has sides that are twice as long as the smaller triangle's (DCO) corresponding sides.
Side note: we can prove the triangles to be similar using the AA (angle angle) similarity theorem. The first pair of angles are the vertical angles DOC and BOA which are congruent to each other.The second pair is CDB and ABD which are congruent by the alternate interior angle theorem. Check out the attached image for a visual.
