Hey there :)
2 ) We know the perimeter of the regular hexagon to be 12 cm and the apothem to be
cm
The area formula of a regular hexagon is:
Area =
× perimeter × apothem
Let us substitute:
A =
= cm²Your answer will be the second option3 ) We know the value of the apothem to be 16.9 cm and the side length to be 14 cm
The perimeter of this octagon is:
P = 8 x side
= 8 x 14
= 112 cm
Area formula of a regular octagon is
A =
perimeter x apothem
A =
( 112 )( 16.9 )
= 946 .4 cm²Your answer will be the last option4 ) The apothem of the regular pentagon is given to be 5.5 cm and the side is 8 cm
The perimeter of this pentagon is:
P = 5 x side
= 5 x 8
= 40 cm
Area formula of a pentagon is:
Area =
x apothem x perimeter
=
( 5.5 ) ( 40 )
= 110 cm²Your answer will be the third option5 ) The apothem of this hexagon is
cm and the side is 18 cm
The perimeter of the hexagon is
P = 6 x side
= 6 x 18
= 108 cm
The area formula of a regular hexagon is
Area =
x apothem x perimeter
=
( 108 )(
)
= 841 cm²Your answer will be the first option