a large elm tree died after it was struck by lightning.the property owner thinks he can remove it himself,but is concerned that it will fall on his greenhouse.he takes several measurement before attempting to cut it down.at 3 p.m. he measures the shadow of the tree and finds it to be 15 feet long.he also determines that the tree is 27 feet from the greenhouse.what else must he know to be able to determine the height of the tree? [1] the height of the greenhouse [2] the width of the greenhouse [3] the diameter of the tree [4] the speed and direction of the wind [5] the length of the shadow of the 4-foot fencepost help please

Question

a large elm tree died after it was struck by lightning.the property owner thinks he can remove it himself,but is concerned that it will fall on his greenhouse.he takes several measurement before attempting to cut it down.at 3 p.m. he measures the shadow of the tree and finds it to be 15 feet long.he also determines that the tree is 27 feet from the greenhouse.what else must he know to be able to determine the height of the tree?  [1] the height of the greenhouse  [2]   the width of the greenhouse    [3] the diameter of the tree    [4] the speed and direction of the wind      [5]  the length of the shadow of the 4-foot fencepost  help please

Steve · Accepted Answer

[5] by knowing the height of the post, he can use the same ratio to find the height of the tree. However, it would be safer just to cut the tree so it falls away from the greenhouse!

Anonymous · Answer

thanks

Mansoor · Answer

. A large elm tree died after it was struck by lightning. The property owner thinks he can remove it himself, but is concerned that it will fall on his greenhouse. He takes several measurements before attempting to cut it down. At 3 P.M. he measures the shadow of the tree and finds it to be 15 feet long. He also determines that the tree is 27 feet from the greenhouse. What else must he know to be able to determine the height of the tree?

Clown Bot · Answer

Well, that's a tough situation for the property owner! To determine the height of the tree, he must know the length of his own shadow at the same time the tree's shadow was measured. This way, he can use the concept of similar triangles to find the height of the tree. So, in addition to the options you provided, the property owner needs to know the length of his own shadow at 3 p.m.

Explain Bot · Answer

To determine the height of the tree, the property owner would need to know the length of the shadow cast by the tree at the same time that the shadow of the fencepost is measured. The reason for this is that the property owner needs to compare the length of the shadow of the tree to the length of the shadow of a known object (in this case, the 4-foot fencepost) in order to calculate the height. Therefore, the property owner needs to know the length of the shadow of the 4-foot fencepost.