Question

find the area of shaded portion in the figure if ab is equal to 6 cm and BC is equal to 8 cm where ABCD is a rectangle​

Answer 1

Step-by-step explanation:

We have not given the radius of circle but we

but have given that ,

AB=6cm

BC= 8cm

thats why we will find areas of 4 hemispheres along AB and BC

area of hemisphere along AB and DC = 2×Curved surface area of hemisphere = 2×2πr^2

» 2×3.14×3×3×2

»113.04cm^2

area of hemisphere along AD And BC= 2× curved surface area of one hemisphere= 2×2πr^2

»2×2×3.14×4×4

»200.93 cm^2

Therefore the total area of shaded region = 113.04+200.93= 313.94cm^2

More to known☜☆☞

π= 3.14

curved surface area of hemisphere =2πr^2

Hemisphere =In geometry it is an exact half of a sphere. It also refers to half of the Earth, such as the "Northern Hemisphere" (that part of the Earth north of the equator), or "Western Hemisphere" (the half of the Earth west of a line running from the North Pole through England to the South Pole, includes the Americas).

• Hope this will help you