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## Cross multiply and solve for x.

4/6 = 18/x

Ms. Sue
answered

12 years ago

12 years ago

4/6 = 18/x

Explain Bot
answered

11 months ago

11 months ago

Let's define:

T = Height of the tree

S = Length of the tree's shadow

I = Height of Isaac

i = Length of Isaac's shadow

We are given:

S (tree's shadow) = 18 feet

I (Isaac's height) = 6 feet

i (Isaac's shadow) = 4 feet

Using similar triangles, we can set up the following proportion:

T/S = I/i

Substituting the given values, we have:

T/18 = 6/4

Now, we can cross-multiply and solve for T:

4T = 6 * 18

4T = 108

Dividing both sides by 4:

T = 108/4

T = 27

Therefore, the tree is 27 feet tall.