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pantera1 [17]
4 years ago
11

Anyone know how to do this ? I suck at these :(

Mathematics
2 answers:
JulijaS [17]4 years ago
5 0
No not really at all
Allisa [31]4 years ago
3 0
No not really :(((((((((((((((((((
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5.2 Two concentric circles have radii 7cm and 4cm respectively. PQ, a chord to the larger circle, is 13cm.
kodGreya [7K]

Two figures are known as similar figures if there the corresponding angles are equal and the corresponding sider is in ratio. The length of the smaller chord AB is 4 cm.

<h3>What are Similar Figures?</h3>

Two figures are known as similar figures if there the corresponding angles are equal and the corresponding sider is in ratio. It is denoted by the symbol "~".

The diagram for the given condition can be drawn as shown below. Therefore, the measure of the smaller chord AB can be found as shown below.

The two triangles, ΔOPQ and ΔOAB are similar. Therefore, for similar triangles, we can write,

\dfrac{PQ}{AB} = \dfrac{OQ}{OB}=\dfrac{PO}{AO}

Now, we can write further,

\dfrac{13}{AB} = \dfrac{7}{4}\\

AB = 7.43 cm

Hence, the length of the smaller chord AB is 4 cm.

Learn more about Similar Figures:

brainly.com/question/11315705

#SPJ1

4 0
3 years ago
Find the perimeter of this figure to the nearest hundredth use 3.14 to approximate pi P=?ft
blagie [28]

Answer:

Step-by-step explanation:

perimeter of the figure = perimeter of the rectangle + perimeter of the semicircle

= 2(l+B) + \pi r

= 2( 10+8) + 3.14 × 5

= 36 + 15.7

= 51.7

= 100 ( rounding off to nearest hundredth )

hope this helps

plz mark it as brailiest!!!!!!

4 0
4 years ago
Read 2 more answers
Find the measure of the indicated angle to the nearest degree? <br><br> Please hurry
scZoUnD [109]

Answer:

53.13°

Step-by-step explanation:

Sin x = Opp/Hyp

Sin x = 76/95

x = Sin- 0.8

=53.13°

5 0
3 years ago
(7i²– 5i + 12) – (3i²+ 6i– 9)<br><br>simplify ​
Harlamova29_29 [7]

Answer:

the correct answer is

4i^2 +6i +21

8 0
3 years ago
Which number doesn't belong?<br>Why?<br>3x<br>-3<br>- 3x?<br>- 5x​
Aliun [14]

Answer:

-3 does not belong because it is not an algebraic expression unlike the others.

7 0
4 years ago
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