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Activities-Pythagoras theorem problems (view source)
Revision as of 11:28, 11 July 2014
, 11:28, 11 July 2014no edit summary
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#In Right angled ∆ABC,∟BAC= 90°,∟B: ∟C = 1:2 andAC= 4cm.calculate thelenght of BC
#In Right angled ∆ABC,∟BAC= 90°,∟B: ∟C = 1:2 andAC= 4cm.calculate thelenght of BC
+''''''Solution'''''''''
+in some special right angled triangle
+ whose angle ratio 1:2:3 that is 30-60-90
+has their sides ratio 1: <math>{\sqrt3}</math> :2
+
+in ▲ABC,
+BC = 2. AC
+
+BC = 2.4
+
+BC = 8 cm
+
#A door of width 6 mt has an archabove it having aheight of 2 mt , find the radius if the arch
#A door of width 6 mt has an archabove it having aheight of 2 mt , find the radius if the arch
# The sides of a right angled triangle are in an AP. Show that sides are in ther ratio 3:4:5
# The sides of a right angled triangle are in an AP. Show that sides are in ther ratio 3:4:5