Plz answer this question..plzz

asked Jan 15, 2022 145k views

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Answer:

$Side\ 3 = 5p^2q + 3r$

Explanation:

Given

Perimeter = 7p^2q + 13r

$Side\ 1 = 14r$

$Side\ 2 = 2p^2q - 4r$

Required

Find the length of the third side

Perimeter is calculated as thus:

$Perimeter = Side\ 1 + Side\ 2 + Side\ 3$

This gives:

$7p^2q + 13r = 14r + 2p^2q - 4r + Side\ 3$

Collect like terms

$Side\ 3 = 7p^2q - 2p^2q + 13r - 14r + 4r$

$Side\ 3 = 5p^2q + 3r$

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