question

What is the area of parallelogram RSTU?

answer

32

question

How does the area of triangle ABC compare to the area of parallelogram GHJK?

answer

The area of △ABC is 2 square units greater than the area of parallelogram GHJK.

question

A regular pentagon is shown.
What is the measure of the radius, c, rounded to the nearest hundredth? Use an appropriate trigonometric ratio to solve.

answer

12.36 cm

question

Trapezoid ABCD is graphed in a coordinate plane.
What is the area of the trapezoid?

answer

12 square units

question

What is the measure of angle BCD?

answer

140

question

A section of a rectangle is shaded.
The area of the shaded section is 63 square units. What is the value of x?

answer

11

question

Which polygon is a concave octagon?

answer

C

question

The regular hexagon has a radius of 4 in.
What is the approximate area of the hexagon?

answer

42 in.2

question

What is the measure of ∠B?

answer

108°

question

The shaded figure is a rhombus.
The area of the shaded section is 60 square units. What is the value of x?

answer

8 units

question

What is the area of triangle LMN?

answer

12 square units

question

What is the area of parallelogram RSTU?`

answer

21 square units

question

Figure ABCD is a parallelogram. Two trapezoids are created using line segment XY such that AX ≅ CY.
What is true about the areas of the trapezoids?

answer

Each area is equal to half of the area of ABCD.

question

In the regular nonagon shown, what is the measure of angle x?

answer

40°

question

An equilateral triangle has an apothem measuring 2.16 cm and a perimeter of 22.45 cm.
What is the area of the triangle, rounded to the nearest tenth?

answer

24.2 cm2

question

The area of the regular pentagon is 6.9 cm2.
What is the perimeter?

answer

10 cm

question

What is the area of parallelogram ABCD?

answer

20 square units

question

What type of polygon is shown?
convex heptagon
concave heptagon
concave octagon
convex octagon

answer

concave heptagon

question

In the kite, AC = 10 and BD = 6.
What is the area of kite ABCD?

answer

30 square units

question

Michael is finding the area of parallelogram ABCD. To do this, he follows the steps in the table.
Step 1
Draw a rectangle around parallelogram ABCD.
Step 2
Find the area of the rectangle.
Step 3 Find the area of the four right triangles created in the corners of the rectangle.
Step 4
Subtract the area of the right triangles from the area of the rectangle.
To solve the problem using these steps, what are the dimensions of the rectangle he should draw?

answer

4 units by 4 units

question

The sum of all but one interior angle of a heptagon is 776°. The final angle must have a measure of ___ degrees.

answer

124

question

What is the value of x?
6
8
10
12

answer

8

question

A regular decagon has a radius of 8 cm.
What is the approximate area of the decagon? Recall that a decagon is a polygon with 10 sides.

answer

188 cm2

question

The area of rhombus ABCD is 72 square units. EC = 8 units and DB = x - 1.
What is the value of x?

answer

10

question

Which polygon has an interior angle sum of 1080°?

answer

A