triangle
/ˈtraɪæŋɡl/noun
उच्चारण ट्राइऐंगल
त्रिभुज, त्रिकोण
Basic word
- 1
[C]
a flat shape with three straight sides and three angles; a thing in the shape of a triangle; a situation involving three people or groups; a simple musical instrument made of a long piece of steel bent into a triangle
त्रिभुज, त्रिकोण
- a right-angled triangle
- a love triangle
- Draw a triangle with sides of five, six and seven centimetres.
+ 2 more examples
- The three roads form a triangle around the park.
- The sum of the angles of a triangle is one hundred and eighty degrees.
Synonyms trilateral triad trio delta
◇Word family
≈Synonyms and antonyms
Synonyms
§Grammar and usage
Keep the tri- (three) words: triangle, tricycle, tripod, trilingual, trio, triplet, triumvirate.
Tri- (तीन) शब्द याद रखिए: triangle, tricycle, tripod, trilingual, trio, triplet, triumvirate।
“Collocations, idioms and sayings
Love triangle (a situation in which three people are involved in romantic relationships), the Bermuda Triangle (an area of the Atlantic where ships and planes are said to have disappeared).
Collocations: love triangle (प्रेम-त्रिकोण), the Bermuda Triangle (अटलांटिक का क्षेत्र जहाँ जहाज़ और विमान गायब होने की बात कही जाती है)।
✓In the exam
General knowledge
Maths GK, asked very often: the sum of the angles of a triangle is 180°; types by sides: equilateral (all sides equal), isosceles (two sides equal), scalene (no sides equal); types by angles: acute, right-angled and obtuse; Pythagoras' theorem (in a right-angled triangle, hypotenuse² = base² + perpendicular²); area = ½ × base × height.
गणित GK में यह बहुत पूछा जाता है: त्रिभुज के कोणों का योग 180° है; भुजाओं के अनुसार प्रकार: समबाहु (equilateral, सभी भुजाएँ बराबर), समद्विबाहु (isosceles, दो भुजाएँ बराबर), विषमबाहु (scalene, कोई भुजा बराबर नहीं); कोणों के अनुसार: न्यूनकोण, समकोण और अधिककोण; पाइथागोरस प्रमेय (समकोण त्रिभुज में कर्ण² = आधार² + लंब²); क्षेत्रफल = ½ × आधार × ऊँचाई।