Find the total surface area of a pyramid. its base is a regular hexagon 4cm on a side. its height is 8 cm. round off to nearest tenth.

The total surface area of a regular hexagonal pyramid is 146.2 cm².

Step-by-step explanation:

The base is a regular hexagon 4cm on a side. its height is 8 cm.

The total surface area of a pyramid with regular hexagon base

Where, a represents the base edge and h represents the height of the pyramid.

The area of given regular hexagonal pyramid is

The total surface area of a regular hexagonal pyramid is 146.2 cm².

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm