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
Vika [28.1K]
3 years ago
7

In a 30cm by 25cm rectangle, a quadrant of a circle of radius 7cm has been cut away from each corner. What is the perimeter of t

he part left? and also what is the area of the part left
​
Mathematics
1 answer:
Anton [14]3 years ago
5 0

Answer:

97.96 cm

596.14 cm²

Step-by-step explanation:

sides become:

  • 30 cm ⇒ 16 cm
  • 25 cm ⇒ 11 cm

and added corners:

  • 4*2πr/4= 2πr = 2*3.14*7 cm= 43.96 cm

then perimeter is:

  • P= 2*16+2*11+43.96= 97.96 cm

the area left is:

  • A= 30*25- 4*1/4*3.14*7²= 596.14 cm²

You might be interested in
Yoshi's age is twice Bart's age plus 3. Yoshi is 13 years old. How old is Bart?
Yuki888 [10]

Answer: 5

Step-by-step explanation:

2x + 3 = 13

3 0
3 years ago
Read 2 more answers
From the hay loft door, Ted sees his dog on the ground. The angle of depression of the dog is 40º. Ted's eye level is 16 feet ab
Vlad1618 [11]

Answer: 19 feet

Step-by-step explanation:

Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.  

Tan α = opposite side / adjacent side  

Where α is the angle of depression of the dog, the opposite side (16) is Ted's eye level above the ground, and the adjacent side (x) is the distance between the dog and the barn door.

Replacing with the values given:  

tan40 = 16/x

Solving for x  

x =16/tan40

x= 19 ft  

Feel free to ask for more if needed or if you did not understand something.  

5 0
3 years ago
May someone one hlrp
Marrrta [24]
52:)

explanation:

haha
5 0
3 years ago
Find the slope of each of the lines below (-4,-2),(6,1)
iren [92.7K]
The slope is 7/6.
Hope it helps .
4 0
2 years ago
Joan has $5,000 in her savings account.
Leona [35]

Answer:

Step-by-step explanation:

25

5,000 divided by 200

8 0
3 years ago
Other questions:
  • Math Property, please help!
    9·1 answer
  • Make a friend right now 10 points for whoever douse
    5·2 answers
  • Please help! 25 points!<br> Write the equation of a line with slope 3/2 and Y-Intercept -2.
    12·1 answer
  • 11.) Write each ratio as a fraction in simplest form. Then explain its meaning. 1 point
    5·1 answer
  • (4*18)^1/2
    9·1 answer
  • Janine has job offer sat two companies. One company offers a starting salary of 28,000 with a raise of 3,000 each year. The othe
    9·1 answer
  • The dimensions of a portable kennel can be expressed as width x, length x + 0.4, and height x − 0.2? What are the dimensions of
    12·1 answer
  • Given the data below, what is the median?<br> 2, 4, 7, 4, 3, 1, 6, 8, 10, 15, 12, 22, 12, 15, 11
    6·2 answers
  • Please help me!
    5·1 answer
  • Is there a faster way to find GCF of large numbers e.g 828 and 529.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!