pentagon
/ˈpentəɡən/noun
उच्चारण पेन्टगन
पंचभुज
Core wordPYP · asked 3 times
Asked in previous papers
as one-word substitution
- 1
[C] geometry
a flat shape with five straight sides and five angles
पंचभुज
- Draw a regular pentagon.
- The teacher asked the children to draw a pentagon with equal sides.
- Each interior angle of a regular pentagon measures 108 degrees.
+ 2 more examples
- The school badge is shaped like a pentagon.
- Count the sides of the pentagon before you find its perimeter.
- 2
[sing.] the Pentagon
the building near Washington DC that is the headquarters of the US Department of Defense; the US military leaders who work there
पेंटागन (अमेरिकी रक्षा मुख्यालय)
- a Pentagon spokesman
- The Pentagon released a statement about the defence agreement with its allies.
- The Pentagon announced a new plan for training its troops.
+ 2 more examples
- Officials at the Pentagon met their Indian counterparts on Monday.
- A report from the Pentagon was discussed on the news last night.
§Structures (grammar patterns) 4
a pentagon: shape (countable)
A pentagon is a flat shape with five straight sides. It is a countable noun with the plural pentagons.
'Pentagon' पाँच सीधी भुजाओं वाली समतल आकृति है; यह countable noun है और इसका plural 'pentagons' है।
- Draw a pentagon with sides of 4 cm.
- The floor tiles in the hall are pentagons and hexagons.
the Pentagon (proper noun)
With a capital P and 'the', it names the US defence headquarters. It is then often used for the US military leaders.
बड़े 'P' और 'the' के साथ यह अमेरिकी रक्षा मुख्यालय का नाम है; इसका प्रयोग अमेरिकी सैन्य नेतृत्व के लिए भी होता है।
- The Pentagon said the report was false.
- The Pentagon is near Washington.
regular pentagon: angles
In a regular pentagon all sides and angles are equal, and each interior angle is 108 degrees.
Regular pentagon में सभी भुजाएँ और कोण समान होते हैं, और प्रत्येक आंतरिक कोण 108 डिग्री का होता है।
- The angles of a pentagon add up to 540 degrees.
pentagonal (adjective)
Pentagonal means having five sides. It can be used before a noun or after be.
'Pentagonal' का अर्थ पाँच भुजाओं वाला है; यह noun से पहले या 'be' के बाद आ सकता है।
- The garden has a pentagonal pond.
+Collocations 4
adjective + pentagon
regularirregularlargefive-sidedconvex
- The teacher drew a large regular pentagon on the board.
verb + pentagon
drawconstructdividemeasureinscribe
- Construct a pentagon inside a circle using a compass.
the Pentagon + verb
announceconfirmdenywarnrelease
- The Pentagon confirmed the movement of ships.
pentagon + parts
sideanglevertexdiagonalarea
- A pentagon has five diagonals.
“More examples 5
- Cut a pentagon from the sheet and paste it on the chart.
शीट से एक पंचभुज काटिए और उसे चार्ट पर चिपकाइए।
- The Pentagon is one of the world's largest office buildings.
पेंटागन दुनिया की सबसे बड़ी कार्यालय इमारतों में से एक है।
- Radhika found the area of a pentagon by dividing it into triangles.
राधिका ने पंचभुज को त्रिभुजों में बाँटकर उसका क्षेत्रफल निकाला।
- The old fort has a pentagon-shaped bastion on the hill side.
पुराने क़िले में पहाड़ी की ओर पंचभुजाकार बुर्ज है।
- A pentagon has fewer sides than an octagon but more than a square.
पंचभुज की भुजाएँ अष्टभुज से कम और वर्ग से अधिक होती हैं।
!Common mistakes 3
✗ A pentagon have five sides.
✓ A pentagon has five sides.
A singular subject takes the singular verb has.
एकवचन subject के साथ singular verb 'has' आती है।
✗ Draw a pentagon of 5 cm side.
✓ Draw a pentagon with sides of 5 cm.
Describe the length of the sides with with sides of, not 'of ... side'.
भुजाओं की लंबाई बताने के लिए 'with sides of' का प्रयोग करें, 'of ... side' नहीं।
✗ A pentagon is a five sides figure.
✓ A pentagon is a five-sided figure.
A compound adjective before a noun is hyphenated and keeps side in the singular.
संयुक्त विशेषण noun से पहले hyphen के साथ लिखा जाता है और उसमें 'side' एकवचन रहता है।
≠Thesaurus: which synonym when
These shapes are named by their number of sides.
इन आकृतियों के नाम उनकी भुजाओं की संख्या से रखे गए हैं।
A shape with six sides, like a honeycomb cell.
छह भुजाओं वाली आकृति, जैसे मधुमक्खी के छत्ते का खाना।
- Bees build hexagon cells.
◇Word family
AaSpelling
pen·ta·gon
⌂Word origin and word building
Penta- means five: pentathlon (five events), Pentateuch.
Penta- का अर्थ पाँच है: pentathlon (पाँच प्रतियोगिताएँ), Pentateuch।
✓In the exam
One-word substitution
One-word substitution, asked very often: a five-sided figure is a pentagon; six-sided a hexagon; eight-sided an octagon.
यह बहुत पूछा जाता है: पाँच भुजाओं वाली आकृति pentagon; छह भुजाओं वाली hexagon; आठ भुजाओं वाली octagon।
General knowledge
Maths: each interior angle of a regular pentagon is 108 degrees; the sum of interior angles is 540 degrees.
गणित में नियमित pentagon का प्रत्येक आंतरिक कोण 108 डिग्री है; आंतरिक कोणों का योग 540 डिग्री।
The Pentagon is the US defence headquarters, shaped like a pentagon.
Pentagon अमेरिकी रक्षा मुख्यालय है, जो pentagon के आकार का है।