Changes
From Karnataka Open Educational Resources
87 bytes added
, 07:44, 11 July 2014
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− | #1 In Right angled ∆ABC,∟BAC= 90°,∟B: ∟C = 1:2 andAC= 4cm.calculate thelenght of BC
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− | ''''''Solution''''''''' | + | '''Difficulty problems in Exercise 11.1 in pythagorus theorem chapter'''''' |
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| + | (4) In Right angled ∆ABC,∟BAC= 90°,∟B: ∟C = 1:2 andAC= 4cm.calculate thelenght of BC |
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| + | ''''''Solution |
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| in some special right angled triangle | | in some special right angled triangle |
| whose angle ratio 1:2:3 that is 30-60-90 | | whose angle ratio 1:2:3 that is 30-60-90 |
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| BC = 8 cm | | BC = 8 cm |
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− | #2 A door of width 6 mt has an archabove it having aheight of 2 mt , find the radius if the arch
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− | Solution | + | |
| + | (6) A door of width 6 mt has an archabove it having aheight of 2 mt , find the radius if the arch |
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| + | ''' |
| + | Solution''' |
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| In figure given | | In figure given |
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| OC= 3.25 mt | | OC= 3.25 mt |
| radius of arch is 3.25 mt | | radius of arch is 3.25 mt |
− | # 3 The sides of a right angled triangle are in an AP. Show that sides are in ther ratio 3:4:5
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| + | (7) The sides of a right angled triangle are in an AP. Show that sides are in ther ratio 3:4:5 |
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| '''Solution''' | | '''Solution''' |