Skip to content

worksheet gardenEnglish

Missing triangle angles

Find the third interior angle of each triangle.

How to use this tool

Find the third interior angle of each triangle.

Choose largest angle step (2° each) and the number of questions.
Find the third interior angle of each triangle.
Print the practice pages for learners; keep the answer pages for checking.

Up to 24 questions. Some topics use products of the selected range, so final values can be larger. Questions may repeat in small ranges.

Your entries stay in this browser. Print at 100% scale on matching A4 or Letter paper. Printing help

Sample questions

Triangle angles: 14°, 2°, ?
Triangle angles: 22°, 8°, ?
Triangle angles: 18°, 14°, ?

Check answers

164°
150°
148°

All 172 tools

All tools

Math 65

Mixed math practice Addition Subtraction without regrouping Times tables Add fractions Subtract fractions Multiply fractions Divide fractions Mixed numbers and improper fractions Fractions of quantities Fractions to decimals Percentages of numbers Percentage change Sale prices Reverse percentages Simplify ratios Share in a ratio Unit rates One-step equations Two-step equations Substitution Expand brackets Factor expressions Arithmetic sequences Rectangle area and perimeter Triangle area Parallelogram area Trapezoid area Circle area and circumference Cuboid volume Complementary and supplementary angles Missing triangle angles Metric length conversion Metric mass conversion Metric capacity conversion Speed, distance and time Find the mean Find the median Find the mode Find the range Probability as a fraction Distance between coordinates Coordinate midpoints Reflect coordinates Add and subtract integers Multiply and divide integers Absolute values Prime, composite or neither Factor pairs Greatest common factor Least common multiple Order of operations Powers and exponents Divisibility rules Division worksheets Comparing fractions worksheets Equivalent fractions worksheets Decimal addition worksheets Number bonds worksheets Skip counting worksheets Place value worksheets Rounding worksheets Comparing numbers worksheets Missing number worksheets Telling time worksheets

Writing 52

Name tracing Writing paper Alphabetical order worksheet Syllable counting worksheet Rhyming pairs worksheet Beginning sounds worksheet Ending sounds worksheet Short vowel sort Consonant digraph worksheet Word family sort Compound word builder Contraction expander Irregular plural practice Irregular past tense practice Synonym choice worksheet Antonym choice worksheet Homophone choice worksheet Prefix meaning worksheet Suffix meaning worksheet Parts of speech sort Subject verb agreement A or an worksheet Sentence punctuation practice Capitalization practice Fact or opinion worksheet Sentence ordering worksheet Cloze passage maker Definition matching maker Acrostic poem maker Word bank writing challenge Vocabulary Frayer model Context clue notebook Story mountain planner Character evidence organizer Setting sensory planner Sequence retelling organizer Cause and effect reading chart Compare characters worksheet Main idea and details Reading response log Reading prediction tracker Question answer evidence sheet Paragraph planner Opinion writing planner How-to writing planner Dialogue planner Poetry line builder Letter writing planner Writing revision checklist Summary builder Book review planner Spelling worksheet maker

Puzzles 3

Word search Word ladder worksheet Word scramble maker

Classroom 29

Study 23