A solid metal sphere is through the center into two equal parts- Find the total surface area of each part the radius of the sphere is 3-5 cm-displaystyle 115-5cm-2-displaystyle 155cm-2-displaystyle 151-5cm-2-displaystyle 151cm-2-

Question

Toppr Admin · Accepted Answer

Given- radius of the hemisphere -3-5cm-According to the statement- the parts obtained are hemisphere-Then- the total surface area of each hemisphere-3-x3C0-r2-xA0- -xA0- -3-xD7-227-xD7-3-5-xD7-3-5-115-5cm2-Therefore- option A is correct-

A solid metal sphere is cut through the center into two equal parts. Find the total surface area of each part if the radius of the sphere is $3.5 c m$ .
$115.5 c m^{2}$
$155 c m^{2}$
$151.5 c m^{2}$
$151 c m^{2}$

Given, radius of the hemisphere $= 3.5 c m$ .

According to the statement, the parts obtained are hemisphere.

Then, the total surface area of each hemisphere $= 3 π r^{2}$

$= 3 \times \frac{22}{7} \times 3.5 \times 3.5 = 115.5 c m^{2}$ .

Therefore, option $A$ is correct.

A solid metal sphere is cut through the center into two equal parts. Find the total surface area of each part if the radius of the sphere is 3.5cm.115.5cm2155cm2151.5cm2151cm2

Given, radius of the hemisphere =3.5cm.According to the statement, the parts obtained are hemisphere.Then, the total surface area of each hemisphere=3πr2 =3×227×3.5×3.5=115.5cm2.Therefore, option A is correct.

A solid metal sphere is cut through the center into two equal parts. Find the total surface area of each part if the radius of the sphere is $3.5 c m$ .
$115.5 c m^{2}$
$155 c m^{2}$
$151.5 c m^{2}$
$151 c m^{2}$

Given, radius of the hemisphere $= 3.5 c m$ .

According to the statement, the parts obtained are hemisphere.

Then, the total surface area of each hemisphere $= 3 π r^{2}$

$= 3 \times \frac{22}{7} \times 3.5 \times 3.5 = 115.5 c m^{2}$ .

Therefore, option $A$ is correct.