1) The area of zone (B) is 4500 m2, find the area of zone (A). shape (A) is regular,(B) is a half of circle.BA2) Determine the area & perimeter of the shaded area. (radius = 55 m)r= 10 m↑ 1.5 m10 m3) Point (O) is the center of the circle, radius = 655 m, determine the area andperimeter of the sector.A1283.4В4) If (AD) = (BD). Find the area and perimeter of the triangle (BCD) shown in fig.1200.0AB'

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1) The area of zone (B) is 4500 m2, find the area of zone (A). shape (A) is regular, (B) is a half of circle. A B.

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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Concept explainers

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.

Question

1) The area of zone (B) is 4500 m2, find the area of zone (A). shape (A) is regular,
(B) is a half of circle.
B
A
2) Determine the area & perimeter of the shaded area. (radius = 55 m)
r= 10 m
↑ 1.5 m
10 m
3) Point (O) is the center of the circle, radius = 655 m, determine the area and
perimeter of the sector.
A
1283.4
В
4) If (AD) = (BD). Find the area and perimeter of the triangle (BCD) shown in fig.
1200.0
A
B'

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