Question

4. Find the area of the reetangular field in acres whose sides are:
i) 50 m and 16 m 7 dm
(ii) 43 m and 28 m
5. The area of a rectangle is 100 em and its length is 25 cm. Find its w​

Answer 1

Answer:

Step-by-step explanation:

Hello!

Find the area of rectangular Field in acres whose sides are 50 m, 16 m and 7 dm.

Note¹: It is important that the questions are well worked out, or else the problem explanation can be changed.

We have the following data:

Note²: As we know the three sides of the triangle, let's apply Heron's formula to find the area.

[First Step] Let's find the semiperimeter of the triangle, let's see:

[Second Step]  Let's find the area of ​​the triangle, let's see:

Note³: It was observed that the square root was negative, in this case the set of complex numbers was applied

If we look at the question, (Find the area of rectangular Field in acres). We will have to convert the measures (m² to acres), see:

(area in m²) _______ (area in acres)

1 m² ------------------------ 4046.9 acres

560.85 i m² ---------------- y

Apply to y = x + vi

multiply the means by the extremes

Let's prescribe for the standard complex form, let's see:

replace in the equation: y = x + vi, we heve:

Answer:

The area of rectangular is approximately 2269703.865i acres

________________________________

________________________________

*** Another way to solve (If the question changed) ***

Find the area of rectangular Field in acres whose sides are 50 m, 45 m and 35 m.

We have the following data:

Note: As we know the three sides of the triangle, let's apply Heron's formula to find the area.

[First Step] Let's find the semiperimeter of the triangle, let's see:

[Second Step]  Let's find the area of ​​the triangle, let's see:

Let's factor for the least common multiple

585000 | 5

117000 | 5

23400 | 5

4680 | 5

936 | 3

312 | 3

104 | 2

52 | 2

26 | 2

13 | 13

1 \___ =  

then:

_____________________________

Hello!

Find the area of rectangular Field in acres whose sides are 50 m, 16 m and 7 dm.

Note¹: It is important that the questions are well worked out, or else the problem explanation can be changed.

We have the following data:

Note²: As we know the three sides of the triangle, let's apply Heron's formula to find the area.

[First Step] Let's find the semiperimeter of the triangle, let's see:

[Second Step]  Let's find the area of ​​the triangle, let's see:

Note³: It was observed that the square root was negative, in this case the set of complex numbers was applied

If we look at the question, (Find the area of rectangular Field in acres). We will have to convert the measures (m² to acres), see:

(area in m²) _______ (area in acres)

1 m² ------------------------ 4046.9 acres

560.85 i m² ---------------- y

Apply to y = x + vi

multiply the means by the extremes

Let's prescribe for the standard complex form, let's see:

replace in the equation: y = x + vi, we heve:

Answer:

The area of rectangular is approximately 2269703.865i acres

________________________________

________________________________

*** Another way to solve (If the question changed) ***

Find the area of rectangular Field in acres whose sides are 50 m, 45 m and 35 m.

We have the following data:

Note: As we know the three sides of the triangle, let's apply Heron's formula to find the area.

[First Step] Let's find the semiperimeter of the triangle, let's see:

[Second Step]  Let's find the area of ​​the triangle, let's see:

Let's factor for the least common multiple

585000 | 5

117000 | 5

23400 | 5

4680 | 5

936 | 3

312 | 3

104 | 2

52 | 2

26 | 2

13 | 13

1 \___ =  

then:

_____________________________