10 questions
6th - 6th Grade
Mathematics
This Grade 6 mathematics worksheet gives students focused practice finding the area of obtuse triangles. Across 10 multiple-choice questions, students identify the triangle-area formula A = bh/2, read base and height measurements from diagrams, calculate areas with different numerical values and units, and select the correct square-unit answer. The repeated format lets students concentrate on applying the area procedure rather than interpreting lengthy written problems. Use this geometry resource for guided practice, independent work, or a quick check of students’ ability to distinguish the perpendicular height from a slanted side. The questions include measurements in feet, millimeters, yards, centimeters, and unnamed units, supporting attention to both computation and units. This free printable worksheet includes a complete answer key for efficient review and feedback.
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WorksheetsAnswer Key40 ft2
12.95 yd2
30
This Grade 6 worksheet covers finding the area of obtuse triangles with the formula A = bh/2. Its 10 multiple-choice questions ask students to identify the formula, use base and height measurements shown in diagrams, calculate the result, and choose the matching square-unit answer.
First model how to locate the base and the perpendicular height in an obtuse-triangle diagram, including a height that may extend outside the triangle. Then work through one of the worksheet’s multiple-choice examples by substituting the measurements into A = bh/2, multiplying base by height, dividing by two, and checking the units. Have students explain why the correct option is expressed in square units before completing the remaining items independently.
Students may use a slanted side instead of the perpendicular height, apply A = bh without dividing by two, or select a distractor that reflects an arithmetic error. They may also report units such as feet or yards instead of square feet or square yards, or overlook the measurement units shown in the diagram. Review the base-height relationship and require students to show the substitution for questions where the answer choices are close.
You can use this area-of-obtuse-triangles worksheet as a printable PDF or assign it as a digital quiz on Wayground. It includes a complete answer key, and printable submissions can be graded by scanning student work with the Wayground for Teachers app. The printable format also gives schools an option for reducing screen time during practice.
Use the worksheet’s Advanced Settings to adjust font spacing or choose a larger font size so the triangle diagrams, measurements, and multiple-choice options are easier to read. You can also enable a dyslexia-friendly font or translate the worksheet into another language. These options create an alternate version of the same area-of-triangles practice without changing its questions.
Wayground offers a comprehensive collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to support mastery of essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.
