All categories

3 years ago

A school track is shown.

Mathematics

2 answers:

aliina [53]3 years ago

8 0

Answer:

Hey There!

Given that:

There are 2 semicircles of the same radius i.e a circle

and a Rectangle

To find:

The perimeter i.e the sum of the circumference of the circle + the perimeter of the rectangle

<h2> $\huge\colorbox{pink}{s}olution = >$ </h2><h2>2πr + 2(l+w)</h2>

where

π =3 .14
r=74/2=37m
l= 1000m
w= 74m

ella [17]3 years ago

4 0

Answer:

2232.36m

Explanation:

since the perimeter of two semicircles adds up to that of one circle, the perimeter of the track would be the perimeter of the circle + the length of the rectangle.

we can find the perimeter of the circle using the formula of π × diameter, which would be:

π × diameter

= 3.14 × 74

= 232.36

now, we can add this to the given length of the rectangle:

232.36 + 1000 + 1000 = 2232.36

thus, the perimeter of the track is 2232.36m.

i hope this helps! :D

You might be interested in

There were 317 marbles divided equally among 8 bowls. About how many marbles were in each bowl?

Sonja [21]

317/8
=39.625
It is impossible to divide 317 equally into 8 bowls
The fairest way to distribute the marbles would be to have 39 in three bowls and 40 in the five other bowls.

Hope this helps!

8 0

4 years ago

The dimensions of a triangle are multiplied by 1/4. The area of the smaller triangle can be found by multiplying the area of the

Deffense [45]

Multiply it by 1/4 because the dimensions are already 1/4

3 0

3 years ago

your grandmother got out of the hospital she was so excited she gave you some money you decided to go to Canada where the exchan

Kobotan [32]

Answer:

You have $10.600 Canadian dollars to spend.

Step-by-step explanation:

This problem can be solved by a rule of three.

In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.

When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too.

When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease.

In this problem, we have the following measures:

-The number of US dollars

-The number of Canadian dollars.

As the number of US dollars increases, so does the number of Canadian dollars, which means that the relationship between the measures is direct.

The problem states that $1 US dollar is $1.06 Canadian dollars. The problme wants to know how much $10000 is in Canadian dollars. So:

1 - 1.06

10000 - x

x = 10000*1.06

x = $10.600

You have $10.600 Canadian dollars to spend.

6 0

3 years ago

Which expression is equivalent to (2^3x9)4/5

wariber [46]

Answer:

288/5

Step-by-step explanation:

simplified: (2³x 9) x 4/5 = 288/5

4 0

3 years ago

Triangle IJK is similar to triangle LMN. Find the measure of side LM. Round your answer to the nearest tenth if necessary.

Andre45 [30]

Answer:

It's either 39.2 or 39.3 (a more accurate answer) because it depends on what you round by. since it's Delta Math, you should get 2 attempts.

Step-by-step explanation:

Since they are similar, they are proportional.

54/11=4.90909091 or 4.9

Multiply 11 by 4.90909091 and you get 54

Multiply 8 by 4.90909091 and you get 39.3

if you multiply by 4.9 you get 39.2

8 0

2 years ago