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Published byNicholas Cruz Modified over 2 years ago

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Target Mindy scored exactly 100 on this dart board. How many darts did she throw, and where did they land?

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Target Answer Mindy shot 6 darts. She hit the 16, 2 times and hit the 17, 4 times. 16 x 2 = 32 17 x 4 = 68 32 + 68 = 100

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Triangles Lesson 10-4

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Triangle A triangle is a figure that has 3 sides and 3 angles. The sum of the measure of the angles is 180° m<1 + m<2 + m<3 = 180° 1 2 3

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Find the missing angle measure <1 = 50° <2= 75° <3 = ?

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Find the missing angle measure <1 = 50° <2= 75° <3 = ? 50 + 75 = 125 180 – 125 = 55°

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Classify Triangles Using Angles Acute Triangle Properties: All acute angles.

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Right Triangle Properties: 1 right angle.

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Obtuse Triangle Properties: 1 obtuse angle.

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Classify Triangles Using Sides Scalene Triangle Properties: No congruent sides.

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Isosceles Triangle Properties: At least 2 congruent sides. This symbol represents that the sides are congruent.

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Classify Triangles Using Sides Equilateral Triangle Properties: 3 congruent sides.

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Naming Triangles Triangles have a 2 part name. The first part of the name, names the angles (acute, obtuse, or right) The second part of the name, names the sides (scalene, isosceles, or equilateral) Example: Obtuse Scalene

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Name the Triangle Acute Scalene

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Right Scalene

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Acute Equilateral

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Find the missing angle. Then classify the triangle as acute, right, or obtuse. 50 °, right x 40°

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Find the missing angle. Then classify the triangle as acute, right, or obtuse. 135 °, obtuse x 20° 25°

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Find the missing angle. Then classify the triangle as acute, right, or obtuse. 20 °, obtuse x 30° 130°

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Dont Forget Homework: Lesson 10-4 # 1-18 all

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