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belka [17]
3 years ago
5

50 pts and brainliest for first answer

Mathematics
2 answers:
gavmur [86]3 years ago
8 0

Answer:

An acute angle ("acute" meaning "small") is an angle smaller than a right angle. The range of an acute angle is between 0 and 90 degrees.

An obtuse triangle (or obtuse-angled triangle) is a triangle with one obtuse angle (greater than 90°) and two acute angles. Since a triangle's angles must sum to 180° in Euclidean geometry, no Euclidean triangle can have more than one obtuse angle.

Protractor: an instrument for measuring angles, typically in the form of a flat semicircle marked with degrees along the curved edge.

Degrees: a unit of measurement of angles, one three-hundred-and-sixtieth of the circumference of a circle.

Right Angel: an angle of 90°, as in a corner of a square or at the intersection of two perpendicular straight lines.

Straight Angle: an angle of 180°.

Step-by-step explanation:

Shalnov [3]3 years ago
7 0

Step-by-step explanation:

1) Acute angles are angles that have a measure less than 90°

2)An obtuse triangle is a triangle that contains an angle greater than 90°

3) A math tool used to construct/ draw lines and angles

4) The unit used to state the measure of an angle

5) An angle that has a measure of 90°

6) An angle that has a measure of 180°

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