Math With Amar · Guided practice
10,000 ways to practice.
One idea at a time.
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
121–140 of 750 matching chapters · Page 7 of 38
Clear filtersGrade 10 · Chapter 121
Compare a triangle's base and altitude · practice 12
Find the area of a triangle with base 3 and perpendicular height 6.5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 122
Distinguish length and cubic scale · practice 13
A rectangular prism has length 1, width 1.5, and height 3. Find its volume. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 123
Restrict a conditional sample space · practice 13
A chosen group contains 8 successes and 3 failures; 8 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 124
Inspect regression residuals · practice 13
For inputs [1, 2, 3, 4, 5] and corresponding outputs [2.75, -0.5, 2.5, 5.5, 2.25], 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 125
Relate an acute angle to side ratios · practice 13
A right triangle has hypotenuse 3 and a selected acute angle of 20°. 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 126
Measure central-angle proportions · practice 14
A circle has radius 1. Find the area and arc length of its 195° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 127
Verify a distance-preserving rotation · practice 14
Rotate (4.5, 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 128
Connect similarity powers · practice 14
Dilate a rectangle with sides 1 and 5 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 129
Track corresponding geometric vertices · practice 13
Translate the point (1, 1) by the vector (-4, -1). 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 130
Compare a triangle's base and altitude · practice 13
Find the area of a triangle with base 5.5 and perpendicular height 5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 131
Distinguish length and cubic scale · practice 14
A rectangular prism has length 1.5, width 3.5, and height 7.5. Find its volume. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 132
Restrict a conditional sample space · practice 14
A chosen group contains 3 successes and 7 failures; 3 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 133
Inspect regression residuals · practice 14
For inputs [1, 2, 3, 4, 5] and corresponding outputs [3, -4, -1, 2, -5], 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 134
Relate an acute angle to side ratios · practice 14
A right triangle has hypotenuse 4 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 135
Measure central-angle proportions · practice 15
A circle has radius 7. Find the area and arc length of its 135° sector. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 136
Verify a distance-preserving rotation · practice 15
Rotate (2, 0) about the origin by 90°. 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 137
Connect similarity powers · practice 15
Dilate a rectangle with sides 3 and 3.75 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 138
Verify a coordinate-distance model · practice 11
A right triangle has perpendicular legs 6 and 12. Find its hypotenuse. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 10 · Chapter 139
Track corresponding geometric vertices · practice 14
Translate the point (1, 1) by the vector (-3, -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 chapterGrade 10 · Chapter 140
Compare a triangle's base and altitude · practice 14
Find the area of a triangle with base 8 and perpendicular height 3.5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapter