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The perimeter of the scalene triangle is 54.6 cm.



Which equation can be used to find the value of b if side a measures 8.7 cm?

8.7 + b = 54.6
17.4 + b = 54.6
26.1 + b = 54.6
34.8 + b = 54.6

Sagot :

calculista
the correct question is
The perimeter of the scalene triangle is [tex]54.6[/tex] cm.
Which equation can be used to find the value of b if side a measure [tex]8.7[/tex] cm and side c measure [tex]26.1[/tex] cm?

we know that
the perimeter of a triangle is equal to

[tex]P=a+b+c \\ P=54.6 cm [/tex] equation 1

[tex]P=a+b+c \\ P=8.7+26.1+b[/tex] equation 2

equate equation 1 and equation 2
[tex]54.6=(8.7+26.1)+b \\ 54.6=34.8+b[/tex]

therefore

the answer is the option D
[tex]34.8 + b = 54.6[/tex]

Answer:The correct answer is :

34.8 + b = 54.6

Step-by-step explanation:

The perimeter of the scalene triangle =  Sum of length of all sides

Given that perimeter of the scalene triangle = 54.6 cm

a = 8.7 cm , c = 26.1 cm

a + b + c= 54.6 cm

8.7 cm + b + 26.1 cm= 54.6 cm

34.8 cm+b = 54.6 cm

From the given options the correct answer is:

34.8 cm+b = 54.6 cm

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