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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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Presentation on theme: "Target Mindy scored exactly 100 on this dart board. How many darts did she throw, and where did they land?"— Presentation transcript:

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

2 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

3 Triangles Lesson 10-4

4 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

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

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

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

8 Right Triangle Properties: 1 right angle.

9 Obtuse Triangle Properties: 1 obtuse angle.

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

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

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

13 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

14 Name the Triangle Acute Scalene

15 Right Scalene

16 Acute Equilateral

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

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

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

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


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