Right triangles in real life and in boxes

Answer Key - Grade 8 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Jun's old TV screen is 12 inches tall and 16 inches wide. Screens are measured corner to corner. How long is its diagonal, in inches?

   20
2. 2.

   Luz's kite flies 35 meters up, right above a spot 12 meters across the field. The string is pulled straight. How long is the string, in meters?

   37
3. 3.

   A 17-foot ladder leans against the gym wall with its foot 8 feet from the wall. Noah holds it steady. How high up the wall does it reach, in feet?

   15
4. 4.

   A 13-foot rope runs from the top of Pia's tent pole down to a peg 12 feet from the pole. How tall is the pole, in feet?

   5
5. 5.

   A 15-foot rope runs from the top of a sailboat's mast to the deck, 9 feet from the mast. Ren checks the knot twice. How tall is the mast, in feet?

   12
6. 6.

   Zee's little TV screen is 15 inches corner to corner and 12 inches wide. How tall is the screen, in inches?

   9
7. 7.

   Ari's kite flies 9 meters up, above a spot 5 meters away across the field. To the nearest tenth of a meter, how long is the string?

   10.3
8. 8.

   Jun flies a kite on 11 meters of string, standing 4 meters from the spot right under it. To the nearest tenth of a meter, how high is the kite?

   10.2
9. 9.

   Kira holds a 12-foot ladder against a fence, its foot 4 feet from the fence. To the nearest tenth of a foot, how high up the fence does it reach?

   11.3
10. 10.

    An 8-foot rope runs from the top of Luz's tent pole to a peg 3 feet away. To the nearest tenth of a foot, how tall is the pole?

    7.4