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mel-nik [20]
2 years ago
5

What’s the perimeter?

Mathematics
2 answers:
RoseWind [281]2 years ago
8 0

Answer:

1,000 feet

Step-by-step explanation:

From point Q to point R, the x values change by 20 units while the y values stay the same.  This side of the polygon has a length of 20

From point R to point S, the y values change by 30 units while the x values stay the same.  This side of the polygon has a length of 30

From point S to point T, the x values change by 20 units while the y values stay the same.  This side of the polygon has a length of 20

From point T to point Q, the y values change by 30 units while the x values stay the same.  This side of the polygon has a length of 30

The total perimeter is 20 + 30 + 20 + 30 = 100 units, each unit represents 10 feet, so the total perimeter is 100(10) = 1,000 feet

Artemon [7]2 years ago
7 0

Answer:

100 feet

Step-by-step explanation:

side lengths:

y2-y1 = /-10-10/ = 20 units

x2-x1= /20-(-10)/ = 30 units

20+20+30+30 = 100

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The sector area of a region of a circle is 23 mi². The central angle, 0 (theta), is 25°. What is the radius?
densk [106]

The radius of the sector is 10.27 miles

<h3>How to find the radius of a sector?</h3>

The area of a sector can be represented as follows;

area of a sector = ∅ / 360 × πr²

where

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  • ∅ = central angle

Therefore,

∅= 25 degrees

area of the sector  = 23 miles²

area of a sector = ∅ / 360 × πr²

23 = 25 / 360 × πr²

cross multiply

23 × 360  = 25πr²

8280 = 25πr²

divide both sides by 25

πr² =  8280 / 25

πr² =  331.2

r² =  331.2 / 3.14

r² = 105.477707006

r = √105.477707006

r = 10.2702336877 miles

Therefore, the radius of the sector is 10.27 miles

learn more on sector here: brainly.com/question/8488428

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