Question

solve :
Q1 - Find the volume of a cuboid where l= 13 cm
B = 16 cm
H=5.5 cm
Q2 - Find the area of a square of side 6.4 m
Q3- Find the area of a circle where radius is 7 cm .
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Answer 1

Answer: Q1 :  $1144 ~~cm^{3}$

Q2: $40.96 m^{2}$

Q3: $153.94 cm^{2}$

Explanation:

Q1:

As the volume of cuboid (V) = length × breadth × height = l x B x H

here the value of length l, breadth B and height H are given,

l= 13 cm

B = 16 cm

H=5.5 cm

so, volume of cuboid  $V = 13 \times 16 \times 5.5 ~~ cm^{3} = 1144 ~~cm^{3}$

Q2:

We have to find the area (A) of a square of side a = 6.4 m.

We know that, area of square $A = a^{2} = (6.4 m)^{2} = 40.96 m^{2}$

Q3:  

We have to find, the area (A) of a circle where the radius of that circle is

r = 7 cm.

We know that area of a circle is given by,

$A = \pi r^{2} = \pi (7 cm)^{2} = 153.94 cm^{2}$.