MATHEMATICS MIDDLE SCHOOL

A semicircular flower bed has a diameter of 3 metres.What is the area of the flower bed?
m2

Answers

Answer 1

Answer:

A semicircular flower bed has a diameter of 3 meters.

Diameter = 3 meters

Radius = $(diameter)/(2)=(3)/(2)$

Area of circle = $\pi r^2$

Area of semi circle = $(1)/(2)\pir^2$

where r is the radius of the circle

Area of semi circle = $(1)/(2) * \pi *(3)/(2)^2$

We use 3.14 for pi

Area of semi circle = $(1)/(2) * 3.14 *(3)/(2)^2$ = 3.5325

Area of semi circle = 3.53 $m^2$

Related Questions

A ________ is a whole number that divides another whole number with a remainder of 0
Tyler needs at least $205 for a new video game system. He has already saves $30. He earns $7 an hour at his job. Write and solve an inequality to find how many hours he will need to work to buy the system. Interpret the solution.
The ice ages are an example of climate change.where else have you heard about climate change
Ellie uses 27 feet of fabric to make 48 doll dresses. she uses the same amount of fabric to make each dress. How many yards of fabric did Ellie use to make each dress?
This is VERY simple , but what is 4021.2386 simplified?

Thank you :D this helped

Answers

Your welcome
LOL
DONALD TRUMP

If point B is halfway between 0 and 1 on a number line and point A is halfway between 0 and point B, what fraction of 1 does point A represent?

Answers

So B is halfway between 0 and 1. What's half of 1? 1/2.

A is halfway between 0 and B. What's half of 1/2? 1/4.

So A is 1/4 of 1.

Alternatively -

0 - A - B - - - 1

If each - is an eighth, A is at 2/8, or 1/4

Answer:

So B is halfway between 0 and 1. What's half of 1? 1/2.

A is halfway between 0 and B. What's half of 1/2? 1/4.

So A is 1/4 of 1.

Alternatively -

0 - A - B - - - 1

If each - is an eighth, A is at 2/8, or 1/4

Sue wants to use mental math to find 7 times 53. Write an expression she could use.

Answers

She could multiply 50x7 and than 3x7 and add those two together.
50 x 7 = 350
3 x 7 = 21
21 + 350 = 371

A rectangle has a perimeter of 18 cm.its length is 5 cm greater than its width.find the dimensions.

Answers

p=18
l=5 cm greater than the width
w=5 less than the length

USE YOUR NUMBER SENSE!!! - just plug in different number below 4 to figure out the width

3=w 3+5=8 8+8=16+6=22 WILL NOT WORK

2=w 2+5=7 7+7=14 14+2+2= 18 WE HAVE A WINNER!!!!

FInal Answer: width: 2 cm and length: 7 cm

Please help again......

Answers

60 = 100%

6 = 10%

24 = 40%

ANSWER: 24

at Alan's sports shop, GO FAST trainers cost £40.95 originally and there is a third off in the sale. At Irene's sport shop, GO FAST trainers cost £40.00 originally and there is a discount of 30% in the sale. Which trainers cost less in the sales?

Answers

the trainers will be cheaper at Alan's sport shop.

prices ->
Alan's: 27.30
Irene's: 28.00

$(1)/(3)$ of 40.95 can be calculated as follows ->

$(1)/(3)$ = $(x)/(40.95)$
simplify to get that x = 27.30

30% of 40.00 can be calculated as follows ->

$(30)/(100)$ = $(x)/(40.00)$
simplify to get that x = 28

$at\ Alan's\ sports\ shop:\n\£40.95- (1)/(3) \cdot\£40.95= (2)/(3) \cdot\£40.95=\£27.30\n \nAt\ Irene's\ sport\ shop:\n\£40.00-30\%\cdot \£40.00=70\%\cdot \£40.00=0.70\cdot \£40.00=\£28.00\n \nAns.\ Less\ cost\ is\ at\ Alan's\ sports\ shop.$