A rectangular strip of dimension 21*7cm is rolled along the longer side. find the area of the solid thus generated
Answers
Answered by
20
circumference =21 cm
radius=21/2# ............#=22/7
=(21*7)/(2*22)
=147/44
surface area= (22*147*147*7)/(7*44*44)
=245.6
radius=21/2# ............#=22/7
=(21*7)/(2*22)
=147/44
surface area= (22*147*147*7)/(7*44*44)
=245.6
Answered by
3
Step-by-step explanation:
please mark it as brainlist
Attachments:
Similar questions