please anybody solve this problem I am 10th standard please please
Attachments:
Answers
Answered by
1
Answer:
Given
height of cylinder = 90 cm
height of hemisphere sphere = radius = 7 cm
so radius of cylinder also = 7 cm
CSA of a cylinder
= 2πrh
= 2×22/7×7×90
= 44×90
= 3960 cm²
both the hemispheres together form a complete hemisphere
so TSA of sphere
= 4 πr²
= 4×22/7×7²
= 88×7
= 616 cm²
so total are of the object = 3960+616= 4576 cm²
Volume of cylinder
= πr²h
= 22/7×7²×90
= 22×7×90= 13860 cm³
volume of 2 hemisphere = volume of sphere
= 4/3πr³
= 4/3×22/7 × 7³
=1437.33 cm³
total volume of figure
= 13860+1437.33
= 15297.33
Step-by-step explanation:
Mark as brainliest ✌️
and follow me
Similar questions