The isosceles triangle has a perimeter of 7.5 m. Which equation can be used to find the value of x if the shortest side, y, meas

Question

The isosceles triangle has a perimeter of 7.5 m.
Which equation can be used to find the value of x if the
shortest side, y, measures 2.1 m?
y
O 2x-2.1 = 7.5
O 4.2 + y = 7.5
X
O y-4.2 = 7.5
0 2.1 + 2 x = 7.5
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Đan Thu 3 years 2021-09-05T06:07:10+00:00 1 Answers 18 views 0

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  1. Nho
    0
    2021-09-05T06:08:25+00:00
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    Answer:

    Option d) 2.1 + 2x = 7.5

    Step-by-step explanation:

    An isosceles triangle is a triangle with two equal sides.

    Perimeter of a triangle is some of all the 3 sides.

    Let the equal sides be x

    Let the third side be y

    Therefore,

                  Perimeter = x + x + y

                             7.5 = 2x + y    

                              7.5 = 2x + 2.1                    [ given shortest side, y = 2.1m ]

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