math quiz 1

Find the area of the following figure. The base angles are right angles.

121 in.2

Which of the following is the best estimate of the circumference of a circle that has a diameter of 7 feet?

21 ft

Find the perimeter of the parallelogram shown.

26 yd

Find the area of the parallelogram shown.

35 yd 2

If the area of the following figure is 46 square centimeters, what is the height of the trapezoid?

4 cm

Wyatt's dog is tethered to a post in his yard. If the rope tied to the dog is 12 feet long, how many square yards does the dog have access to? (Use 3.14 for π.)

50.24 yd 2

The perimeter of the following rectangle is 40 inches. What is the length of w?

6 in.

All rhombuses are squares.

False

An octagon has equal sides that each measure 11 centimeters. Its perimeter is 66 centimeters.

False

The circumference of a circle can be found using the formula C = π · r 2.

False

A rectangle has a base of 3 inches and a height of 9 inches. If the dimensions are doubled, what will happen to the area of the rectangle?

It will be four times the original size.

A rectangle has a base of 5 inches and a height of 7 inches. If the dimensions are cut in half, what will happen to the area of the rectangle?

It will be one-fourth the original size.

If the dimensions of a parallelogram are doubled, the perimeter will also be doubled.

True

The shaded area of the following shape can be found by subtracting the area of the circle from the area of the triangle.

True