Question

The perimeter of a rectangular window is 324 cm .

If the width of the window is 73 cm , what is its length?

Answer 1

L = 89 cm

Explanation:

Formula we use,

→ P = 2(L + W)

Then the value of its length is,

→ P = 2(L + W)

→ 324 = 2(L + 73)

→ 324 = 2L + 146

→ 2L = 324 - 146

→ L = 178/2

→ [ L = 89 cm ]

Hence, the length is 89 cm.

Answer 2

• The length is 89 cm

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Perimeter equation

P = 2(l + w), where

• P- perimeter,
• l- length,
• w- width

Given

• P = 324 cm,
• w = 73 cm

Find the value of l:

• 324 = 2( l + 73)
• l + 73 = 324/2
• l + 73 = 162
• l = 162 - 73
• l = 89