Similar solids, and what changing a dimension does to perimeter, area, surface area and volume
Grade 10 Math Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.
Rows length, face area, volume; scale factor × 2 written on the length row. Noah's tent is 8 feet wide, 5 feet tall and 12 feet long. A similar tent has every length 2 times as long. How wide is the big tent, in feet?
Rows length, face area, volume; scale factor × 4 written on the length row. Pia's toy castle is 6 cm wide, 6 cm deep and 9 cm tall. A similar toy castle has every length 4 times as long. How tall is the big toy castle, in cm?
Rows length, face area, volume; scale factor × 3 written on the length row. Ren's soup can is 4 cm in radius and 11 cm tall. A similar soup can has every length 3 times as long. How tall is the big soup can, in cm?
Tala's tiny box (1 by 1 by 5 cm) takes 22 square cm of paper to wrap. A similar box has edges 3 times as long. How much paper does it need, in square cm?
Zee's gift box (2 by 3 by 4 inches) takes 52 square inches of paper to wrap. A similar box has edges 2 times as long. How much paper does it need, in square inches?
Grid, not to scale: one 1 by 1 face of the small box beside the matching face of the big box, a 2 by 2 block of squares. Grid, not to scale: one 1 by 1 face of the small box beside the matching face of the big box, a 2 by 2 block of squares. One 1 by 1 face of the small box beside the matching face of the big box, a 2 by 2 block of squares. Not to scale. Ari's toy lunchbox (1 by 2 by 6 inches) takes 40 square inches of paper to wrap. A similar box has edges 4 times as long. How much paper does it need, in square inches?
Grid, not to scale: one 1 by 1 face of the small box beside the matching face of the big box, a 4 by 4 block of squares. Grid, not to scale: one 1 by 1 face of the small box beside the matching face of the big box, a 4 by 4 block of squares. small box 1 by 1 face big box 4 by 4 block of squares Bo's wooden block (3 by 4 by 5 cm) takes 94 square cm of paper to wrap. A similar box has edges 2 times as long. How much paper does it need, in square cm?
Grid, not to scale: one 1 by 1 face of the small box beside the matching face of the big box, a 2 by 2 block of squares. Grid, not to scale: one 1 by 1 face of the small box beside the matching face of the big box, a 2 by 2 block of squares. One 1 by 1 face of the small box beside the matching face of the big box, a 2 by 2 block of squares. Not to scale. Esme's ice block has a volume of 6 cubic cm. A similar one has every edge 3 times as long. What is the big one's volume, in cubic cm?
Sketch, not to scale: one unit cube of the small ice block beside the matching 3 by 3 by 3 block of cubes in the big one. Sketch, not to scale: one unit cube of the small ice block beside the matching 3 by 3 by 3 block of cubes in the big one. one unit cube 3 3 3 Jun's toy block has a volume of 24 cubic inches. A similar one has every edge 2 times as long. What is the big one's volume, in cubic inches?
Sketch, not to scale: one unit cube of the small toy block beside the matching 2 by 2 by 2 block of cubes in the big one. Sketch, not to scale: one unit cube of the small toy block beside the matching 2 by 2 by 2 block of cubes in the big one. one unit cube 2 by 2 by 2 block of cubes Not to scale. Kira's jewelry box has a volume of 10 cubic cm. A similar one has every edge 4 times as long. What is the big one's volume, in cubic cm?
Sketch, not to scale: one unit cube of the small jewelry box beside the matching 4 by 4 by 4 block of cubes in the big one. Sketch, not to scale: one unit cube of the small jewelry box beside the matching 4 by 4 by 4 block of cubes in the big one. small jewelry box 4 4 4 big one one unit cube; matching 4 by 4 by 4 block of cubes Not to scale.

