Similar Figures
True or False: all squares are similar figures
true
What number do you get when you multiply a number and its reciprical?
1
Quadrilateral ABCD is a scaled copy of quadrilateral EFGH. The scale factor is 2. True or False Angle E is 2 times larger than Angle E
False, Corresponding Angles are equal.
10 inch : 50 feet
1 inch : ____ feet
10 inch : 50 feet
1 inch : 5 feet
Rose drew a scale drawing of an Italian restaurant. The restaurants's kitchen, which is 12 meters wide in real life, is 2 millimeters wide in the drawing. What is the scale of the drawing?
1 millimeter : _____ meters
1 millimeter : 6 meters
A rectangle has side lengths of 9 inches by 3 inches
Is the rectangle with side lengths 4.5 and 1.5 similar?
Double Points if you give me the Scale Factor.
yes! Scale factor is 1/2
What is the reciprocal of 1/4?
4
Quadrilateral ABCD is a scaled copy of quadrilateral EFGH. The scale factor is 2. True or False Segment AB is 1/3 the size of EF?
False, it is 1/2 the size.
If the scale factor is 4, and the area of the original figure is 8 square inches, what is the area of the new figure?
128 square inches
Sam measured a summer camp and made a scale drawing. The volleyball court is 3 centimetres wide in the drawing. The actual volleyball court is 9 meters wide. What scale did Sam use for the drawing?
1 centimeter : _____ meters
1 centimeter : 3 meters
A rectangle has side lengths of 9 inches by 3 inches.
Is the rectangle with side lengths 90 by 30 similar?
Double Points if you tell me the scale factor.
Yes! Scale factor is 10.
Reciprocal of 4/5
5/4
Quadrilateral ABCD is a scaled copy of quadrilateral EFGH. The scale factor is 2. True or False Segment GH is twice as long as CD.
True.
The scale of Mary's drawing is 1 inch : 6 miles. If a road is 5 inches long in the drawing, how long is the road in real life?
30 miles
Uriel drew a scale drawing of a house and its lot. The scale of the drawing was 1 inch : 6 feet. If the actual width of the porch is 18 ft, How wide is the porch in the drawing?
3 inches
A rectangle has side lengths of 12 and 3.
Is the rectangle with side lengths 6 and 1.5 similar?
If yes, What is the scale factor?
Yes! Scale Factor k = 1/2
If the scale factor from small to big is 9, what is the scale factor from big to small?
1/9
Quadrilateral ABCD is a scaled copy of quadrilateral EFGH. The scale factor is 5. True or False If the perimeter of ABCD = 4, the perimeter of EFGH =20
True.
The scale of Juan's drawing is 2 cm : 7 meters. If a building is 49 meters tall in real life. How tall should it be in the drawing?
14 cm
Kevin drew a scale drawing of a boarding school. The scale of the drawing was 1 millimeter : 3 meters. A building at he school is 150 meters long in real life. How long is the building in the drawing.
50 millimeters
Draw and label a similar figure to a right triangle with side lengths 3, 4, 5. Use a scale factor of 3.
What is a triangle with side lengths that are 9, 12,15
If the scale factor from big to small is 1/8, what is the scale factor from small to big?
8
Quadrilateral ABCD is a scaled copy of quadrilateral EFGH. The scale factor is 3. True or False. If the area of ABCD is 8 sq. cm, than the area of EFGH is 24 sq. cm.
False, it is 9 times bigger, because to find how many times bigger the area is you multiply by the scale factor squared.
If my scale is 1 in : 9 meters. How long should a 20 meter park be in my drawing?
20/9 inch
Amy made a scale drawing of a theater. The stage is 5inches wide in the drawing. The actual stage is 20 feet wide. What is the scale of the drawing?
1 inch : _____ feet
1 inch : 4 feet