Answers ECASD - Geometry A - CRArea of Composite Figures

Area of Composite Figures — Unit test Answers

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A semicircle with diameter 8 inches is connected to a triangle with a base length of 8 inches. The height of the triangle is 3 inches.

(8π + 6) in.2

(8π + 12) in.2

(8π + 18) in.2

(8π + 24) in.2

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The owner of a minigolf course is replacing the artificial grass on a portion of the course. The area to be replaced is shown in the diagram.

8π + 180

16π + 180

8π + 228

16π + 228

Which statements about the octagon are true? Select two options.

The length of segment YZ is 15.3 cm.

The measure of the angle formed by the radius and the apothem is 30°.

The length of segment XY can be found by solving for a in 202 – 7.652 = a2.

The length of segment WZ is 20 cm.

The measure of the central angle, ∠ZXW, is 45°.

Complete the steps, which describe how to find the area of the shaded portion of the circle.

length of the radius

length of the diameter

measure of the central angle

circumference of the circle

A regular heptagon has a radius of approximately 27.87 cm and the length of each side is 24.18 cm.What is the approximate area of the heptagon rounded to the nearest whole number? Recall that a heptagon is a polygon with 7 sides.

1,173 cm2

2,125 cm2

2,359 cm2

4,250 cm2

A regular hexagon is shown.

4 in.

5 in.

9 in.

11 in.

A composite figure is comprise of a semicircle, a hexagon, and a rectangle.

as a circle, two trapezoids, and a rectangle

as a semicircle, a pentagon, and two triangles

as a semicircle, a hexagon, and a rectangle

as a circle, six triangles, and a rectangle

A regular hexagon has an apothem measuring 14 cm and an approximate perimeter of 96 cm.

224 cm2

336 cm2

448 cm2

672 cm2

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Area of Composite Figures — Unit test Answers

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