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Name Date Unit Practice Exam 3 Estimation and Computation Part A Measure each angle below with a protractor. Then choose a word from the list to name each angle type: acute, obtuse, adjacent, right. 1. 2. R D O . 3. . . U G R . N m DOG = ________ . . m RUN = _________ __________ angle . ____________ angle 4. a. What is a reflex angle? __________angle b. Draw and label a reflex angle. ______________________ ______________________ ______________________ 5. Write the number that has 3 in ones place, a digit in the ten-thousands place that is twice the digit in the ones place, the smallest even digit in the millions place, 9 in the tenths place, and 1 in all other places. ___ , ___ ___ ___ , ___ ___ ___ . ___ ___ m R= _______ . Use your Geometry Template to do the following: 6. Draw an equilateral triangle. 7. Draw two isosceles triangles. that is not equilateral. 8. Draw a scalene triangle. 9. List several ways in which an equilateral triangle and a scalene triangle are the same. ___________________________________________________ ___________________________________________________ 10. List several ways in which an equilateral triangle and a scalene triangle are different. ____________________________________________________ ____________________________________________________ For each polygon below, fill in the ovals next to all true statements. 12 11. o o o o This polygon is a quadrangle. At least two sides are parallel. At least two angles are congruent. This is a regular polygon. This polygon is a quadrangle. At least two sides are parallel. At least one angle is acute. At least two angles are congruent. This is a regular polygon o o o o Find the missing angle measure without using your protractor. 13. 14. 15. 40o S 50o 90o E Y m Y = _____ . U 70o m E = _____ m S = _____ 16. Describe the characteristics of adjacent angles. ____________________________________________________ ____________________________________________________ 17. a. At the right, use a straightedge to draw a pair of adjacent angles. Make one of the angles obtuse. Use letters to name the angles. b. Tell which angle is obtuse. ___________ c. Without using your protractor, estimate the measure of each angle to the nearest 10°. m _________ is about ________. m _________ is about ________. 18. Use the table below to answer the questions on the next page State Ohio Indiana Minnesota Michigan Population Data 1850 1900 1,980,000 988,000 6,000 398,000 4,158,000 2,516,000 1,751,000 2,421,000 1950 7,947,000 3,934,000 2,982,000 6,372,000 2000 11,319,000 6,045,000 4,830,000 9,679,000 a. Which state had the largest population in 1950? ____________________ b. Which state had the smallest population 50 years later? __________________________________ c. Which state had the greatest increase in population from 1900 to 1950? _______________________ What was the increase? _______________________ 19. Use the pattern-block shapes on your Geometry Template to make a pattern that tessellates below. (The pattern-block shapes are parked PB.) 20. Explain why your pattern is a tessellation. ________________________________________________________ ________________________________________________________ ________________________________________________________