Chapter Test 3 Prep CME Geometry Mr. Tanaka.

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Chapter Test 3 Prep CME Geometry Mr. Tanaka

In 3A, you learned how to Change one shape into another by making cuts and rearranging the parts Tell when two shapes are scissors-congruent Prove the Midline Theorem using cuts and rearrangement

Problem 1 Describe an algorithm for dissecting this trapezoid into a rectangle.

Problem 2 In the figure below, M is the midpoint of 𝐴𝐶 , 𝑙 ǁ 𝐵𝐶 , and 𝐸𝑀=𝑀𝐹. Prove each statement. 𝐸𝐶 ǁ 𝐴𝐵 𝐵𝐶𝐸𝐹 is a parallelogram 𝐹𝑀= 1 2 𝐵𝐶

In 3B, you learned how to Calculate the area of a parallelogram, of a triangle, and of a trapezoid Prove the formulas for calculating the areas above Tell the difference between two figures being scissors-congruent and having the same area

Problem 3 In trapezoid 𝐴𝐵𝐶𝐷, 𝐴𝐵 ǁ 𝐶𝐷 . What is the area of trapezoid 𝐴𝐵𝐶𝐷?

Problem 4 What is the area of this pentagon?

Problem 5 If two rectangles have the same area, are they scissors-congruent? Explain.

In 3C, you learned how to Follow the logical reasoning and fill in missing steps in proofs of the Pythagorean Theorem Identify the critical features in a proof without words See where and how to use the Pythagorean Theorem to find missing lengths in figures

Problem 6 Write your favorite proof of the Pythagorean Theorem.

Problem 7 How far is the cat from the birds?

Problem 8 Draw two parallel lines 𝑙 and 𝑚 that are 3 in. apart. Choose point 𝐴 on line 𝑙 and line 𝑛 through point 𝐵 on line 𝑚 such that 𝐴𝐵=5 in. Draw line 𝑛 through point 𝐵 and perpendicular to line 𝑚. Let 𝐶 be the intersection of lines 𝑙 and 𝑛. How far is 𝐶 from 𝐴?

In 3D, you learned how to Find the surface area of solids by visualizing their nets Estimate the volumes of solids Use formulas for the volumes of certain solids

Problem 9 A friend of yours has made a replica of a traditional Sioux tepee, and she needs to know its volume. Suppose the inside of her tepee is a cone of radius 4m, with slant height 8 m. What is the approximate volume of the tepee?

Problem 10 What is the total surface area of the cone shown below?

Problem 11 What is the volume of the solid below?