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Target Mindy scored exactly 100 on this dart board.PowerPoint Presentation

Target Mindy scored exactly 100 on this dart board.

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Target Mindy scored exactly 100 on this dart board.

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- How many darts did she throw, and where did they land?

- 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

Triangles

Lesson 10-4

- 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

- <1 = 50° <2= 75° <3 = ?

- <1 = 50° <2= 75° <3 = ?
- 50 + 75 = 125
- 180 – 125 = 55°

- Acute Triangle
- Properties: All acute angles.

- Right Triangle
- Properties: 1 right angle.

- Obtuse Triangle
- Properties: 1 obtuse angle.

- Scalene Triangle
- Properties: No congruent sides.

- Isosceles Triangle
- Properties: At least 2 congruent sides.

This symbol represents that the sides are congruent.

- Equilateral Triangle
- Properties: 3 congruent sides.

- 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

- Acute Scalene

- Right Scalene

- Acute Equilateral

- 50 °, right

x

40°

- 135 °, obtuse

20°

25°

x

- 20 °, obtuse

30°

x

130°

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