All categories

3 years ago

An arc length is a fractional part of the

Mathematics

1 answer:

LenaWriter [7]3 years ago

4 0

Answer:

Each of the 4 sectors have an area:

πR²/8 - πr²/8, where
R = 28/2 - 2 = 12 in
r = 6/2 = 3 in

Find the area:

A = π/8(12² - 3² ≈ 53 in²

Outer perimeter of the frame:

P = d + πd/2 =28( 1 + π/2) ≈ 72 in

You might be interested in

A: 2x + 8y = 5 B: x + 9y = 10

zalisa [80]

Hope this helps you!

3 0

3 years ago

Guys, I need help:

natima [27]

Answer:

5 times is the answer

7 0

3 years ago

1/4 plus 1/6 in simplest terms

Tasya [4]

Answer:

$\frac{5}{12}$

Step-by-step explanation:

$\frac{1}{4}+\frac{1}{6}\\\\=\frac{3}{12}+\frac{2}{12}\\\\=\frac{5}{12}$

7 0

3 years ago

Read 2 more answers

Question:

aivan3 [116]

Answer:

part A) The scale factor of the sides (small to large) is 1/2

part B) Te ratio of the areas (small to large) is 1/4

part C) see the explanation

Step-by-step explanation:

Part A) Determine the scale factor of the sides (small to large).

we know that

The dilation is a non rigid transformation that produce similar figures

If two figures are similar, then the ratio of its corresponding sides is proportional

Let

z ----> the scale factor

$\frac{CB}{C'B'}=\frac{CD}{C'D'}=\frac{BD}{B'D'}$

The scale factor is equal to

$z=\frac{CB}{C'B'}$

substitute

$z=\frac{4}{8}$

simplify

$z=\frac{1}{2}$

Part B) What is the ratio of the areas (small to large)?

Area of the small triangle

$A=\frac{1}{2}(2)(4)=4\ units^2$

Area of the large triangle

$A=\frac{1}{2}(4)(8)=16\ units^2$

ratio of the areas (small to large)

$ratio=\frac{4}{16}=\frac{1}{4}$

Part C) Write a generalization about the ratio of the sides and the ratio of the areas of similar figures

In similar figures the ratio of its corresponding sides is proportional and this ratio is called the scale factor

In similar figures the ratio of its areas is equal to the scale factor squared

4 0

3 years ago

The median number of magazine appearances made by 7 models is 5. The range of number of magazine appearances by those models is

sattari [20]

Answer:not enough information

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers