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Lesson 5 Menu

Lesson 5 Menu

Determine whether a regular quadrilateral tessellates the plane. Explain. Determine whether a regular octagon tessellates the plane. Explain. Determine whether a semi-regular tessellation can be created from a triangle and a square. Assume each figure has a side length of 1 unit.

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Dilations

Dilations

Dilations. Dilations. Dilations. Dilations. Dilations. Dilations. Dilations. Dilations. Dilations. Section 9.5. Determine whether a dilation is an enlargement, a reduction, or a congruence transformation. Determine the scale factor for a given dilation. dilation.

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EXAMPLE 2

EXAMPLE 2

Arch. The stone above the arch in the diagram is an isosceles trapezoid. Find m K , m M , and m J. STEP 1. Find m K . JKLM is an isosceles trapezoid, so K and L are congruent base angles, and m K = m L = 85 o. EXAMPLE 2. Use properties of isosceles trapezoids. SOLUTION.

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196 views • 7 slides
EXAMPLE 2

EXAMPLE 2

Arch. The stone above the arch in the diagram is an isosceles trapezoid. Find m K , m M , and m J. STEP 1. Find m K . JKLM is an isosceles trapezoid, so K and L are congruent base angles, and m K = m L = 85 o. EXAMPLE 2. Use properties of isosceles trapezoids. SOLUTION.

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178 views • 7 slides
EXAMPLE 2

EXAMPLE 2

Arch. The stone above the arch in the diagram is an isosceles trapezoid. Find m K , m M , and m J. STEP 1. Find m K . JKLM is an isosceles trapezoid, so K and L are congruent base angles, and m K = m L = 85 o. EXAMPLE 2. Use properties of isosceles trapezoids. SOLUTION.

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210 views • 6 slides
Area Review

Area Review

Area Review. February 3, 2010. Write the following formulas. Area of a triangle Area of quadrilateral Area of a trapezoid Area of circle Area of regular polygon. 6. Triangle ABC 7. Circle D 8. Trapezoid EFGH 9. Quadrilateral IJKL.

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