ISTEP Grade 6 Sample Open Response Test Answers
ISTEP Grade 6 Sample Open Response Test Answers
ISTEP Grade 6 Sample Open Response Test Answers
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14.<br />
<strong>ISTEP</strong> <strong>Grade</strong> 6 <strong>Sample</strong> <strong>Open</strong> <strong>Response</strong> <strong>Test</strong> <strong>Answers</strong><br />
Find the area of the figure below, given that MN is the diameter of the semicircle.<br />
Use 3.14 as an approximation for π. Explain how you arrived at your answer.<br />
Show your work.<br />
Course 1, Lesson 10-5<br />
M N<br />
12 cm<br />
<strong>Sample</strong> explanation: Since the figure is a semicircle, you divide the equation<br />
for the area of a circle by 2 (or multiply it by 1<br />
2 ).<br />
A = π(r 2 ) ÷ 2 (since the figure is half a circle)<br />
A = π (6 2 ) ÷ 2<br />
A = 56.52 cm 2<br />
Answer 56.52 cm 2<br />
Copyright © by Holt, Rinehart and Winston. All rights reserved.
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