Circle Secrets QuizCircle Secrets Geometry Mastery Quiz Name: Date: 1 Identify the Part Select the correct term from the Word Bank Radius Diameter Chord Circumference Center Question 1 Question 2 Question 3 Question 4 Question 5 Calculation Reference Diameter is twice the radius. Radius is half the diameter. Diameter d = 2r Radius r = d / 2 2 Finding the Radius Given the diameter, calculate the radius. Show your work in the boxes provided. Question 6 d = 14 cm Radius = Question 7 d = 32 m Radius = Question 8 d = 100 mm Radius = Question 9 d = 15 cm Radius = Question 10 d = 48 in Radius = 3 Finding the Diameter Given the radius, calculate the diameter. Show your work in the boxes provided. Question 11 r = 5.5 in Diameter = Question 12 r = 12.5 ft Diameter = Question 13 r = 9 yd Diameter = Question 14 r = 2.25 m Diameter = Question 15 r = 0.5 km Diameter = Geometry Blueprint Series • Grade 6-8 • Circle Standards • Circle Anatomy and Measures
Circle Secrets Answer KeyCircle Secrets Teacher Answer Key Geometry Mastery Quiz Part 1: Identification (1 pt each) Q1 Center Q2 Radius Q3 Diameter Q4 Chord Q5 Circumference Part 2: Finding the Radius (2 pts each) 6 d = 14 cm 7 cm 7 d = 32 m 16 m 8 d = 100 mm 50 mm 9 d = 15 cm 7.5 cm 10 d = 48 in 24 in Part 3: Finding the Diameter (2 pts each) 11 r = 5.5 in 11 in 12 r = 12.5 ft 25 ft 13 r = 9 yd 18 yd 14 r = 2.25 m 4.5 m 15 r = 0.5 km 1 km Total Calculation 5 ID + 10 Calc = 15 Total Questions Pass mark: 18/25 (72%) Total Possible 25 PTS