Scale Problems

Myra has a rectangular painting. The painting is similar to a rectangle that measures 4 inches by 6 inches. What could be the dimensions of Myra’s painting?

• 8 in. by 10 in.

• 2 in. by 3 in.

• 5 in. by 7 in.

• 12 in. by 14 in.

Tags

TEKS.MATH.7.5C

The pair of figures is similar. Find the missing side.

• x = 20

• x = 12

• x = 5

• x = 4

Tags

TEKS.MATH.7.5C

A building is 20 feet tall and casts a 12 foot shadow, and a person who is standing right next to the building casts a 3 foot shadow, how tall would the person be?

• 15 feet

• 20 feet

• 2.5 feet

• 5 feet

Tags

TEKS.MATH.7.5C

Find missing side

• 5

• 7

• 9

• 11

Which triangle is similar to the above triangle ?

• A

• B

• C

• D

Are the following similar? Why or why not?

• Yes, the ratios of the corresponding sides are equal.

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

On a map, the distance between two towns in 2.6 cm. The scale of the map is 1 cm:50 km. What is the actual distance between the two towns?

• 100 km

• 130 km

• 70 km

• 150 km

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

• 144 feet

• 72 feet

• 36 feet

Find side length X.

• 30

• 25

• 15

• 40

Which statement must be true about the triangles to be similar figures?

• Angle R is congruent to angle X.

• Angle T is congruent to angle W.

• Angle Q is congruent to angle Y.

• Angle T is congruent to angle Q.