Question

HELPme

A square is always which of these?

circle

triangle

trapezoid

rectangle

2.

A wheel has a radius of 15 cm. Approximately how far does it travel in 4 revolutions?

47.1 cm

94.2 cm

188.4 cm

376.8 cm

3.

The diameter of a circular garden is 22 feet. What is the approximate area of the garden?

50 square feet

100 square feet

254.34 square feet

379.94 square feet

4.

What are the solutions to the equation y2 – 1 = 15?

–5 and 5

–4 and 4

–7 and 7

–9 and 9

Answer 1

rectangle

376.8 cm

379.94 square feet

–4 and 4

Answer 2

1. Rectangle

2. 376.8 cm

3. 379.94 square feet

4. –4 and 4

Explanation:

A square is always a rectangle.

If a wheel has a radius of 15 cm, it would travel approximately 376.8 cm per 4 revolutions.

If the diameter of a circular garden is 22 feet, the approximate area of the garden is 379.94 square feet.

The solutions to the equation y2 – 1 = 15 is –4 and 4.