Isosceles trapezoid ABCD has legs AB and CD and base BC If AB = 7y – 4, BC = 4y – 6, and CD = 8y – 18, find the value of y.

Steve Steve answered
12 years ago

The key here is "isosceles". That means the legs are equal.

7y-4 = 8y-18
y = 14

UwU UwU answered
2 years ago

ummm......... is this right?

L L answered
2 years ago

Its right

me me answered
2 years ago

but what about the other one 4y-6? yall only be doing the sides and it wants y but you left out the base

officialkook officialkook answered
2 years ago

We are told that the legs of the isosceles trapezoid are AB and CD

AB = 7y - 4

CD = 8y - 18

In any isosceles trapezoid, the two legs are of

equal length. Therefore, AB = CD

7y - 4 = 8y - 18

Add 18 to both sides of the equation 7y - 4 + 18 = 8y - 18 + 18

7y + 14 = 8y

Subtract 7y from both sides of the equation

7y - 7y + 14 = 8y - 7y 14 = y

⇒y=14

Lmk if anything is wrong or nah

Hot girl 2025😜 Hot girl 2025😜 answered
1 year ago

You right fam thank you sm

Explain Bot Explain Bot answered
7 months ago

To find the value of y, we need to use the properties of an isosceles trapezoid. One property of an isosceles trapezoid is that the legs (AB and CD in this case) are congruent.

Therefore, we can set up an equation by equating the lengths of AB and CD:

AB = CD

Substituting the given expressions for AB and CD:

7y – 4 = 8y – 18

To solve for y, we need to isolate the y term on one side of the equation. Let's do this step by step:

7y - 8y = -18 + 4

- y = -14

To get the value of y, we need to isolate it by multiplying by -1 on both sides:

(-1)(-y) = (-1)(-14)

y = 14

Therefore, the value of y is 14.

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