# Target Mindy scored exactly 100 on this dart board.

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

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 = 100

Triangles Lesson 10-4

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

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

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

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

Classify Triangles Using Angles
Right Triangle Properties: 1 right angle.

Classify Triangles Using Angles
Obtuse Triangle Properties: 1 obtuse angle.

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

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

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

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

Name the Triangle Acute Scalene

Name the Triangle Right Scalene

Name the Triangle Acute Equilateral

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

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

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

Don’t Forget Homework: Lesson # 1-18 all

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