Your friend is trying to calculate the height of a nearby oak tree. You tell him that you learned how to use similar triangles in Geometry class. You tell your friend to measure his height (75 inches) and you measure the length of his shadow (48 inches). Both of you measure the length of the tree’s shadow (38 feet). How tall is the tree (in feet)? Round to the nearest hundredth.
Answer

Question

Your friend is trying to calculate the height of a nearby oak tree. You tell him that you learned how to use similar triangles in Geometry class. You tell your friend to measure his height (75 inches) and you measure the length of his shadow (48 inches). Both of you measure the length of the tree’s shadow (38 feet). How tall is the tree (in feet)? Round to the nearest hundredth.
Answer

anonymous · Answer

Get all the units the same so you want feet. The height of your friend is 6.25 feet and the shadow is 4 feet. Then you want do put the equivilant sides on top of each other in a fraction so.$$\frac{ 6.25 }{ x } = \frac{ 4 }{ 38 }$$

anonymous · Answer

Then multiply it out to get$$4x = 6.25 x 38$$
And then divide by 4.

anonymous · Answer

75 inches equals 6ft 3in. which is 6.25 ft.
48 inches is 4ft 
4/6.25 equals 0.64
0.64 multiplied by 38 equals 24.32
24.32 plus 38 equals 62.32
the height of the tree is 62.32 feet.

anonymous · Answer

$$\frac{ 4 }{ 6.25 } = \frac{ 38 }{x }$$

anonymous · Answer

That's what you should have done. So multiply both sides by x. Then multiply both sides by 6.25 and divide by 4.

anonymous · Answer

59.38 is the answer.

anonymous · Answer

I tried that but it said it was wrong

anonymous · Answer

Pretty sure that's right.

anonymous · Answer

Well it said it was wrong

anonymous · Answer

Maybe you've written the question wrong?

anonymous · Answer

no I copied and pasted the question