A triangular prism is covered with foil label The label does not cover the two ends. How much foil is necessary to cover the prism

The required foil is about   sq units.

Step-by-step explanation:

Given:

A triangular prism covered with foil.

To Find:

If two ends are not covered how much foil is required.

Solution:

The triangular prism has total of 5 faces  as

two side faces ............... Rectangular shape

one bottom face.............rectangular shape

two side faces............ triangular face.

(Refer the attachment for diagram)

Area of triangle =

Now there  2 traingles so

Total are for triangle =

Area for bottom rectangle,

=length *breadth

Area for 2 side rectangles,

=2*(length * breadth)

=2*(l*S)

Hence required area =total area -area of triangle

(As triangles are presented at both ends) and as per condition.

.

555.99.

step-by-step explanation:

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