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Activities-Pythagoras theorem problems (view source)
Revision as of 13:14, 11 July 2014
, 13:14, 11 July 2014no edit summary
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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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#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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+# 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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''''''Solution'''''''''
+'''Difficulty problems in Exercise 11.1 in pythagorus theorem chapter''''''
+(4) In Right angled ∆ABC,∟BAC= 90°,∟B: ∟C = 1:2 andAC= 4cm.calculate thelenght of BC
+''''''Solution
+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
−Solution
+(6) A door of width 6 mt has an archabove it having aheight of 2 mt , find the radius if the arch
+'''
+Solution'''
In figure given
In figure given
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Line 52:
OC= 3.25 mt
OC= 3.25 mt
radius of arch is 3.25 mt
radius of arch is 3.25 mt
−(7) The sides of a right angled triangle are in an AP. Show that sides are in ther ratio 3:4:5
'''Solution'''
'''Solution'''