1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zubka84 [21]
3 years ago
9

HW #35: similar polygons

Mathematics
1 answer:
Alex73 [517]3 years ago
4 0

Answer:

Q 9:

Because the two polygons are similar so AB ≈ PQ = SR

Scale factor is 25/20 = 1.25

Perimeter of ABCD = 14+20+14+20 = 68

We can find the length of SP by multiplying the scale factor with the AD so

SP = 14 * 1.24= 17.5

Perimeter of PQRS = 17.5+25+17.5+25 = 85

-----------------------------------------------------------------------------------

Q 10:

Because the two polygons are similar so AD ≈. EH

Scale factor is 7/14 = 0.5

Perimeter of ABCD = 12+14+13+26 = 65

Because the two polygons are similar so DC ≈ HG

and our scale factor is 0.5 so HG = 13/2 = 6.5

Perimeter of EFHG = 6 + 7 + 6.5 + 13 =  32.5

----------------------------------------------------------------------------------

Q 11:

The Geometric Mean is a special type of average where we multiply the numbers together and then take a square root (for two numbers). And the formula for finding the Geometric mean of two numbers a and b is

\sqrt{a*b}

So geometric mean of the 8 and 10 can be found as

\sqrt{8*2} = \sqrt{16} = 4

-----------------------------------------------------------------------------------

Q 12:

Similarly we can using the above formula of finding the geometric mean of 5 and 45 as

\sqrt{5*45} = \sqrt{225} = 15


-------------------------------------------------------------------------------

Q 13:

and we can find the geometric mean of 6 and 30 by using the same formula

\sqrt{6*30} = \sqrt{180} = 13.41

You might be interested in
A rectangle has side lengths 2x + 3 and 5x - 2.
xz_007 [3.2K]

Answer:

10x² + 11x - 6

Step-by-step explanation:

The area (A) is the product of the sides, that is

A = (2x + 3)(5x - 2) ← expand using FOIL

   = 10x² - 4x + 15x - 6 ← collect like terms

   = 10x² + 11x - 6

5 0
3 years ago
4/3 (4•5)} = 203 <br><br> ? = 203
Marta_Voda [28]

Answer:

4/3 (4•5)} = 203

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is x need help asap???
Alik [6]
You will notice that 48°, x, and x lie upon a straight line.  The sum of those angles must then be equal to 180°.  Which means:

48+x+x=180

48+2x=180

2x=132

x=66°
7 0
3 years ago
Read 2 more answers
I need help with 24 plzz
e-lub [12.9K]

Answer: -60

Step-by-step explanation:

5 - 1/3x = -15

-1/3x = -20

(-3/1)-1/3x=-20(-3/1)

x = -60

8 0
3 years ago
To show a repeating decimal, a bar is placed over the repeating pattern. <br> True or False
solniwko [45]

Answer:

True

Step-by-step explanation:

Example: 1.666666...

In that case, place the bar on top of the last 6

4 0
3 years ago
Other questions:
  • 3 times of 4 yards 2 foot
    11·1 answer
  • A computer programmer had two files with a total size of 68.76 gigabytes. If one of the files was 35.46 gigabytes, how big is th
    15·2 answers
  • Can you help me with this it’s so confusing plz help me with both is this
    15·1 answer
  • Dan and Dawn purchased a house for $69,500. They had to make a down
    15·1 answer
  • Simplify XY/YZ ??????
    8·2 answers
  • Solving systems of equations y=-3x+4 and x=2y+6
    5·1 answer
  • Find the product: (5x + 5y) (x + 4y)
    5·1 answer
  • Find the percent of change. Round to the nearest tenth of a percent if necessary. 10 inches to 25 inches. ___ % increase.​
    7·1 answer
  • PLZ LOOK AT THE PICTURE AND HELP ME. ALSO EXPLAIN HOW U GOT THE ANSWER
    14·1 answer
  • HELP!! Angle Proofs- Geometry!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!