Given:– The length of equator of a globe 44 cm Find:– It’s area Solution:– The length of equator of a globe is the circumference of the globe. Circumference=44 cm So, The circumference of a circle=[tex]\orange{2 \ pi \ r}[/tex] We know that value of pi is 22/7 or 3.14Here We will use 22/7 44=2×22/7×r r=44×7/2×22 Therefore r=7 cm Hence the radius of globe is 7 cm Now we will find total surface area Surface area=[tex]\pink{4 \ pi\ r^2}[/tex] Surface area=[tex]\blue{4×22/7×7×7}[/tex] Surface area=[tex]\green{616 cm^2}[/tex] Therefore the surface area is [tex]\bold{616 \ cm^2}[/tex] Reply

Answer: Length of the equator of the globe or circumference of a globe =44cm Let radius r=x Circumference of the globe =2πr ∴44=2× 7 22 ×x ⇒x= 44 44×7 =7cm Then Surface area of the globe = 4πr 2 =4× 7 22 ×(7) 2 =616cm 2 Reply

Given:–The length of equator of a globe 44 cm

Find:–It’s area

Solution:–The length of equator of a globe is the circumference of the globe.

Circumference=44cmSo, The circumference of a circle=[tex]\orange{2 \ pi \ r}[/tex]

Weknowthatvalueofpiis22/7or3.14HereWewilluse22/744=2×22/7×r

r=44×7/2×22

Therefore r=7 cm

Hencetheradiusofglobeis7cmNowwewillfindtotalsurfaceareaSurface area=[tex]\pink{4 \ pi\ r^2}[/tex]

Surface area=[tex]\blue{4×22/7×7×7}[/tex]

Surface area=[tex]\green{616 cm^2}[/tex]

ThereforethesurfaceareaisAnswer:Length of the equator of the globe or circumference of a globe =44cm

Let radius r=x

Circumference of the globe =2πr

∴44=2×

7

22

×x

⇒x=

44

44×7

=7cm

Then Surface area of the globe = 4πr

2

=4×

7

22

×(7)

2

=616cm

2