Finding Sides of Triangles

Find the length of side y.

• 22.32 cm

• 36.5 cm

• 76.34 cm

• 87.76 cm

Find the missing side length. Round to the nearest tenth

• 9.4

• 9.4°

• 12.4

Find the missing side length. Round to the nearest tenth.

• 35 units

• 49.5 units

• 49.5°

Choose the correct ratio.

• cos(57)=x/20

• sin(57)=x/20

• cos(57)=20/x

• sin(57)=20/x

Find x round to the nearest tenth.

• 46.1

• 4.9

• 16.4

• 26.9

Choose the correct ratio.

• cos(33)=x/14

• sin(33)=x/14

• cos(33)=14/x

• sin(33)=14/x

Choose the correct ratio.

• cos(33)=x/14

• sin(33)=x/14

• cos(33)=14/x

• sin(33)=14/x

solve for x

• 5552363959656.

• 10

• 100

• 89

To which shape(s) does the Pythagorean theorem apply?

• All triangles

• Right triangles only

• Some right triangles and some isosceles triangles 

• Right triangles and circles.

The Pythagorean theorem states that:

• The two smaller sides of a right triangle sum to equal the longest side.

• The squares of the two smaller sides of a right triangle sum to equal the square of the longest side.