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= Hints for difficult problems =

= Hints for difficult problems =

#Craft teacher of a school taught the students to prepare cylindrical pen holders out of card board. In a class of strength 42, if each child prepared a pen holder of radius 5 cm and height 14 cm, how much cardboard was consumed?  

1.Craft teacher of a school taught the students to prepare cylindrical pen holders out of card board. In a class of strength 42, if each child prepared a pen holder of radius 5 cm and height 14 cm, how much cardboard was consumed?  

Exercise 16.1 Problem 7.[[Mensuration_problems#Problem_1 |solution]]

Exercise 16.1 Problem 7.[[Mensuration_problems#Problem_1 |solution]]

##Find the weight of a solid cone whose base is of diameter 14 cm and vertical height 51cm, if the material of which it is made weighs 10gm/ [[Mensuration_problems#Problem_2 |Solution]]

2.Find the weight of a solid cone whose base is of diameter 14 cm and vertical height 51cm, if the material of which it is made weighs 10gm/ [[Mensuration_problems#Problem_2 |Solution]]

###A Cylindrical container of radius 6cm and height 15cm is filled with ice cream. The whole ice cream has to be distributed to 10 children in equal cones with hemispherical tops. If the height of the conical portion is 4 times the radius of its base , find the radius of the cream cones [[Mensuration_problems#Problem_3 |Solution]]

3.A Cylindrical container of radius 6cm and height 15cm is filled with ice cream. The whole ice cream has to be distributed to 10 children in equal cones with hemispherical tops. If the height of the conical portion is 4 times the radius of its base , find the radius of the cream cones [[Mensuration_problems#Problem_3 |Solution]]

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= Project Ideas =

= Math Fun =

= Math Fun =