March Regional________________________________________Geometry IndividualFor all questions, NOTA means “None of the Above Answers are Correct”.Please note that all drawings are not to scale.1.In right triangleABCwith right angle atC,Dlies onABandperpendicular toAB.IfAD = 4andDB = 9, what is the length of?CDisA) 5B) 6D)E) NOTAC)
2.What is the cosine of a 60 degree angle in a right triangle?
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3.Which of the following types of lines will never intersect?I.OrthogonalII.ParallelIII.PerpendicularIV.Skew
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4.Kay is an aspiring chef and practices by baking cookies at home. Since Kay especially lovessnickerdoodle cookies, she decides to bake them one day. She uses baking sheets that are rectangularwith dimensions of 18 inches by 12 inches. To make cookies, Kay uses circles of dough with radius 1inch. If the radius of a cookie expands½of an inch during the baking process and Kay doesn’t want anycookies to be overlapping each other before and after baking (although they can be tangent), what is themaximum number of snickerdoodle cookies that Kay can make on a single baking sheet?
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5.A rectangular piece of 7x10 paper is folded as shown such that the twoopposite corners touch. Find the area of the shaded region.A)B)C)D)E) NOTA