Math 9 Third Quarter

Which of the following ratios is equivalent to 7:4?

• 28:16

• 8:14

• 21:9

• 35:16

The length and width of a rectangle are 8 cm and 12 cm, respectively. Find the ratio between the length and perimeter of the rectangle.

• 8:12

• 2:3

• 1:5

• 3:10

The ratio of two supplementary angles are 1:3. What is the measure of the smaller angle?

• 30°

• 45°

• 60°

• 75°

The lengths of the sides of a triangle are in the ratio 2:3:4. Find the length of the smaller side if the perimeter of the triangle is 72 cm.

• 12 cm

• 16 cm

• 24 cm

• 32 cm

The lengths of the sides of a triangle are in the ratio 2:3:4. Find the length of the smaller side if the perimeter of the triangle is 72 cm.

• 12 cm

• 16 cm

• 24 cm

• 32 cm

Which pair of ratios forms a proportion?

• $\frac{10}{18}=\frac{14}{28}$

• $\frac{10}{28}=\frac{14}{18}$

• $\frac{15}{18}=\frac{30}{9}$

• $\frac{15}{9}=\frac{30}{18}$

The ratio of angles of a triangle is 1:2:5. Find the measure of the smallest angle.

• 15°

• 22.5°

• 28.5°

• 32°

In a right triangle, the ratio of the measures of the two acute angles is 7:11. What is the measure of the larger angle?

• 50°

• 55°

• 58°

• 62°

The angles of a quadrilateral are in the ratio 3:5:7:9. What is the measure of the largest angle?

• 90°

• 120°

• 135°

• 170°

The ratio of the perimeter of similar polygons is equal to their ratio of the corresponding sides.

• True

• Partly True

• False

• unidentified