Find missing sides in similar shapes

Question 1

Two triangles are similar. The small one has sides 3 cm and 4 cm. The matching side to 3 cm on the large triangle is 9 cm. How long is the side matching 4 cm?

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Question 2

Ben is 2.5 m tall and casts a 1.5 m shadow. At the same moment a tree casts a 8 m shadow. How tall is the tree, in m? Round to 1 decimal place if needed.

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Question 3

Two triangles are similar. The small one has sides 6 cm and 5 cm. The matching side to 6 cm on the large triangle is 15 cm. How long is the side matching 5 cm?

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Question 4

Daniel is 3.5 m tall and casts a 1.5 m shadow. At the same moment a tree casts a 20 m shadow. How tall is the tree, in m? Round to 1 decimal place if needed.

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Question 5

Two triangles are similar. The small one has sides 6 cm and 7 cm. The matching side to 6 cm on the large triangle is 9 cm. How long is the side matching 7 cm?

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Question 6

Elena is 2 m tall and casts a 2.5 m shadow. At the same moment a tree casts a 8 m shadow. How tall is the tree, in m? Round to 1 decimal place if needed.

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Question 7

Two triangles are similar. The small one has sides 3 cm and 4 cm. The matching side to 3 cm on the large triangle is 9 cm. How long is the side matching 4 cm?

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Question 8

Aisha is 3.5 m tall and casts a 1.5 m shadow. At the same moment a tree casts a 16 m shadow. How tall is the tree, in m? Round to 1 decimal place if needed.

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Question 9

Two triangles are similar. The small one has sides 5 cm and 9 cm. The matching side to 5 cm on the large triangle is 12.5 cm. How long is the side matching 9 cm?

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Question 10

Kofi is 2 m tall and casts a 1.5 m shadow. At the same moment a tree casts a 11 m shadow. How tall is the tree, in m? Round to 1 decimal place if needed.

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Question 11

Two triangles are similar. The small one has sides 8 cm and 5 cm. The matching side to 8 cm on the large triangle is 24 cm. How long is the side matching 5 cm?

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Question 12

Tariq is 3.5 m tall and casts a 1.5 m shadow. At the same moment a tree casts a 19 m shadow. How tall is the tree, in m? Round to 1 decimal place if needed.

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Question 13

Two triangles are similar. The small one has sides 9 cm and 5 cm. The matching side to 9 cm on the large triangle is 18 cm. How long is the side matching 5 cm?

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Question 14

Chloe is 2 m tall and casts a 1.5 m shadow. At the same moment a tree casts a 11 m shadow. How tall is the tree, in m? Round to 1 decimal place if needed.

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Question 15

Two triangles are similar. The small one has sides 2 cm and 3 cm. The matching side to 2 cm on the large triangle is 6 cm. How long is the side matching 3 cm?

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Question 16

Nia is 2 m tall and casts a 1 m shadow. At the same moment a tree casts a 16 m shadow. How tall is the tree, in m? Round to 1 decimal place if needed.

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