Similar shapes: matching sides and angles
Grade 7 Math Worksheet - Challenge Me
Circle the best answer, or write your answer on the line.
One row 25 | 10 for the matching sides, with a box for the multiplier from A to B. Jun copies a big model door (A) into a small model (B), similar shapes. A is 25 cm tall and B is 10 cm tall. What is the scale factor from A to B?
One row 16 | 10 for the matching sides, with a box for the multiplier from A to B. Luz shrinks a tent model (A) into a mini tent (B), similar shapes. A's pole is 16 cm and B's matching pole is 10 cm. What is the scale factor from A to B?
Noah compares two similar tent flaps. Triangle ABC is similar to triangle EFD. How many cm long is side FD?
Bo has similar roof triangles A and B. Every side of B is 2 times as long as A's. A has angles of 50° and 55°. How big is B's angle matching A's third angle?
Esme has similar sails A and B. Every side of B is 1.5 times as long as A's. A has angles of 35° and 60°. How big is B's angle matching A's third angle?
Luz cuts a small sail (A) and a bigger, similar sail (B), shown here. How many cm of rope go all the way around B's edge?
Milo builds a small ramp (A) and a bigger, similar ramp (B), shown here. How many cm of tape go all the way around B's edge?
Noah orders a bigger print of a drawing. The drawing (A) is 4 by 6 inches and the print (B) is 6 by 9 inches. Are A and B similar?
- No: the print is a different size than the drawing
- No: the short sides differ by 2 inches but the long sides differ by 3
- Yes: both pairs of sides are × 3/2
- Yes: both rectangles are longer than they are wide
Zee labels two similar roofs. Triangle ABC is similar to triangle FDE. Angle A is 40°. Which corner of triangle FDE has a 40° angle?
- corner F
- corner D
- corner E
Ari labels two similar tent flaps. Triangle ABC is similar to triangle EFD. Angle B is 65°. Which corner of triangle EFD has a 65° angle?
- corner F
- corner D
- corner E