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MATH TAKS

MATH TAKS. Objective 8. The correct answer is: H. Multi- Step problem Find the proportion of line segment WZ 6__ = _X_ 4.5x = 40.5 4.5x = 40.5 4.5 6.75 4.5 4.5 X = 9 Now use find the area of triangle VZW 6.75*9

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MATH TAKS

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  1. MATH TAKS Objective 8

  2. The correct answer is: H • Multi- Step problem • Find the proportion of line segment WZ • 6__ = _X_ 4.5x = 40.5 4.5x = 40.5 4.5 6.75 4.5 4.5 X = 9 Now use find the area of triangle VZW 6.75*9 2 = 30.375 cm2

  3. The correct answer is: F • Mutli-step problem • Find the leg of the smaller right triangle • a2 + b2 = c2 • 42 + b2 = 52 16 + b2 = 25 25 – 16 = b2 9 = b2 = b b = 3 The length of segment XZ is 10. Subtract 3 from 10 to use the Pythagorean theorem again: (10 -3)2 + 42 = XY2 72 + 42 = c2 49 + 16 = 65 square root 65; your answer is:

  4. The correct answer is: F • Make sure to measure with centimeters

  5. The answer is: H • Use a proportion to solve: • Altitude = 30 in. Slant height Þ= 34 in. 30 = 0.937534 = 1.0625 32 32 Make sure you are looking at the correct proportion.

  6. The correct answer is: B • Add together all line segments to get the radius of circle P. Find the are of circle P using • πr2 = π92 = 81π • Now find the area of the small circle using QR as the radius • π32 = 9π • Subtract: 81π – 9π = 72π

  7. The correct answer is: B • Using the formula: • Arc degree = Arc length___ 360 circumference 75_ = arc length ; cross multiply 360 2π36 then, divide 75(2π36) = 360arc length 16961.4 = 47.1 in. 360

  8. The correct answer is: B • Remember perimeter is the distance around, when you “add up” all the sides. Your formula is 2l+ 2w = P. See what happens when you put in numbers.

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