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
Eduardwww [97]
3 years ago
9

A rectangular paperboard measuring 20in long and 16in wide has a semicircle cut out of it, as shown below.Find the area of the p

aperboard that remains. Use the value 3.14 for pi, and do not round your answer. Be sure to include the correct unit in your answer.

Mathematics
1 answer:
CaHeK987 [17]3 years ago
5 0

Answer: 219.52 inch^2

Step-by-step explanation:

Given the dimensions of rectangular papaerboard:

Length = 20inches

Width = 16inches

Area of rectangle = Length × width

Area of rectangle = 20 × 16 = 320 in^2

Area of a circle = pi*r^2

Therefore, area of semicircle = (pi*r^2) / 2

Diameter of circle = width of rectangle = 16 inches

Radius = diameter / 2 = 16 /2 = 8inches

Therefore, area of semicircle = (pi*8^2) / 2

= (3.14 × 64) / 2

= 200.96 / 2

= 100.48 inch^2

Therefore, area of paperboard left :

Area of rectangle - area of semicircle

320 - 100.48

= 219.52 inch^2

You might be interested in
Find the missing terms.<br> 3, _____, _____, 21 (arithmetic)
natka813 [3]

Answer:

3, 9, 15, 21

Step-by-step explanation:

3x1=3 v

3x2=6

3x3=9 v

3x4=12

3x5=15 v

3x6=18

3x7=21 v

Skip one each time, 3, 9, 15, 21

6 0
3 years ago
In a recent survey of college-educated adults, 324 indicated that they regularly work more than 45 hours a week. If this represe
Arlecino [84]

Answer:

900 people

Step-by-step explanation:

.36x=324

×=324÷.36

x=900

6 0
3 years ago
Out of the 800 students enrolled in a recreational
aliya0001 [1]
256 is the answer to this question.
800x.32 equals 256 seventh graders
6 0
3 years ago
Help plzzzzzzzzzzzzzz
zvonat [6]

Answer:

can u copy and paste the text so i can actually see??

Step-by-step explanation:

3 0
3 years ago
How to write 15/8 as a mixed number
Harlamova29_29 [7]
Mixed=whole+fraction

15/8=8/8+7/8=1+7/8=1 and 7/8
8 0
3 years ago
Read 2 more answers
Other questions:
  • hi if anyone can help me with 2b and 2c. if my answer for 2a is wrong please tell me what i did wrong
    13·1 answer
  • Suppose 90 out of 120 people said they like to work out and 5 out of every 18 of the people who like to work out have a gym memb
    7·1 answer
  • On a map, the length of a river is 4.75 in. The actual length of the river is 247 miles. What is the scale of the map?
    15·1 answer
  • Line v passes through points (1, 17) and (9, 10). Line w is perpendicular to v. What is the slope of line w?
    10·1 answer
  • Solid:<br> What is the surface area of the pyramid?<br> units
    13·1 answer
  • What is 10 +20-9+2+8-3 <br><br> first to answer will get brainlyest
    7·1 answer
  • c. Suppose you are given the functa. If f(x) = 10x − 1, the value of f(−2) is __________. b. If g(x) = −5x + 13, the value of g(
    11·1 answer
  • Write the product using exponents. (pls help)
    14·2 answers
  • The figure below hows three quadrilaterals on a coordinate grid:
    11·1 answer
  • Can anyone help me with my maths problem.<br>Thank you​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!