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Chapter 12: Q2. (page 478)

Refer to rectangular solids with dimensions l, w and h. Complete the following table.

l50w30h15L.A.T.A.V

Short Answer

Expert verified

l50w30h15L.A.2400T.A.5400V22500

Step by step solution

01

Step 1. Given information.

The length, width and height of a rectangle are 50, 30 and 15 respectively.

02

Step 2. Write the concept.

The lateral area of the rectangle is given by:

L.A.=Perimeter脳Height

The total area of the rectangle is given by:

T.A.=L.A.+2(Base)

The volume of rectangle is given by:

V=l脳w脳h

03

Step 3. Determine the value.

Now, substitute all the given values in the formula.

L.A.=2(l+w)脳h=2(50+30)脳15=2(80)脳15=160脳15=2400鈥夆赌塽苍颈迟2

And

T.A.=2400+2(50脳30)=2400+2(1500)=2400+3000=5400鈥夆赌塽苍颈迟2

And the volume is

V=50脳30脳15=1500脳15=22500鈥夆赌塽苍颈迟3

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