Math With Amar · Guided practice
10,000 ways to practice.
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Each chapter gives you a distinct mathematical scenario: one question to attempt, a hint, a worked solution, and an animated example you can control.
10,000 questions · 10,000 animated scenarios · 14 study levels

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Grade labels are starting points; school sequences vary. Advanced chapters assume the prerequisites listed on their pages.
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Grade 10 practice chapters
661–680 of 750 matching chapters · Page 34 of 38
Clear filtersGrade 10 · Chapter 661
Measure central-angle proportions · practice 72
A circle has radius 6.5. Find the area and arc length of its 120° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 662
Verify a distance-preserving rotation · practice 72
Rotate (3.25, 0) about the origin by -150°. Find the image and its distance from the origin. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 663
Connect similarity powers · practice 71
Dilate a rectangle with sides 1.5 and 6 by length factor 1.5. Find the new side lengths and area. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 664
Track corresponding geometric vertices · practice 67
Translate the point (1, 1) by the vector (-5, 0). Find the image and the movement length. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 665
Compare a triangle's base and altitude · practice 70
Find the area of a triangle with base 8.5 and perpendicular height 9. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 666
Distinguish length and cubic scale · practice 72
A rectangular prism has length 2, width 3, and height 3.5. Find its volume. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 667
Restrict a conditional sample space · practice 72
A chosen group contains 1 successes and 3 failures; 2 cases lie outside it. Find P(success | chosen group) and the fraction of all cases in the chosen group. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 668
Inspect regression residuals · practice 72
For inputs [1, 2, 3, 4, 5] and corresponding outputs [2, 2, 7, 12, 12], find the least-squares slope, mean output, and sum of squared residuals. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 669
Relate an acute angle to side ratios · practice 69
A right triangle has hypotenuse 6 and a selected acute angle of 60°. Find the opposite and adjacent legs. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 670
Measure central-angle proportions · practice 73
A circle has radius 1. Find the area and arc length of its 345° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 671
Verify a distance-preserving rotation · practice 73
Rotate (5, 0) about the origin by 75°. Find the image and its distance from the origin. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 672
Track corresponding geometric vertices · practice 68
Translate the point (1, 1) by the vector (-4, -5). Find the image and the movement length. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 673
Compare a triangle's base and altitude · practice 71
Find the area of a triangle with base 2.5 and perpendicular height 2. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 674
Distinguish length and cubic scale · practice 73
A rectangular prism has length 2.5, width 5, and height 8. Find its volume. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 675
Restrict a conditional sample space · practice 73
A chosen group contains 4 successes and 6 failures; 9 cases lie outside it. Find P(success | chosen group) and the fraction of all cases in the chosen group. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 676
Inspect regression residuals · practice 73
For inputs [1, 2, 3, 4, 5] and corresponding outputs [2.25, -1.5, 3.5, 8.5, 4.75], find the least-squares slope, mean output, and sum of squared residuals. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 677
Measure central-angle proportions · practice 74
A circle has radius 5. Find the area and arc length of its 75° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 678
Verify a distance-preserving rotation · practice 74
Rotate (2.5, 0) about the origin by -60°. Find the image and its distance from the origin. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 679
Connect similarity powers · practice 72
Dilate a rectangle with sides 3.5 and 4.75 by length factor 0.75. Find the new side lengths and area. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 680
Track corresponding geometric vertices · practice 69
Translate the point (1, 1) by the vector (-1, 6). Find the image and the movement length. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapter