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Crank
3 years ago
15

Find the area of a triangle with sides a=5, b=8 and c=11

Mathematics
2 answers:
Lynna [10]3 years ago
5 0

Answer:

440

Step-by-step explanation:

5x8=40

40x11=440

Have a good day :P :P

Debora [2.8K]3 years ago
5 0

<u>ANSWER: </u>

The area of the triangle with sides a=5, b=8 and c=11 is  4 \sqrt{21} \text { square units. }

<u>SOLUTION: </u>

Given, a = 5, b = 8, c = 11.

We need to find the area of the triangle with sides as given.

Let us find the area of triangle using heron’s formula:

\begin{array}{l}{\text { Area }=\sqrt[2]{s(s-a)(s-b)(s-c)}} \\\\ {\text { Where } s=\frac{a+b+c}{2}}\end{array}

Now, let us calculate value of s and put it in heron’s formula.

s=\frac{5+8+11}{2}=\frac{24}{2}=12

Substitute s value in heron’s formula along with a, b, c values.

\begin{array}{l}{\text { Area }=\sqrt{12(12-5)(12-8)(12-11)}} \\ {=\sqrt{12(7)(4)(1)}} \\ {=\sqrt{4^{2} \times 3 \times 7}=4 \sqrt{21} \text { sq units. }}\end{array}

Thus the area of the triangle with sides a=5, b=8 and c=11 is  4 \sqrt{21} \text { square units. }

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Answer:answer is a (x+8)^2=86

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x+8=±√

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6 0
3 years ago
How do i put this into words please help
Serjik [45]
Hello,

This is simple :)

<span>First divide:

How many times does 16 go into 7? : 0

7 GOES into 16, 0 times, now we have ; 0.

Next, multiply 16(0):0

Now, subtract 7-0

=7

Bring 0 down... so now we have 70... how many times can you divide 16 into 70? : about 4 times.

Now we have: 0.4

Multiple 16 by 4

= 64 : SUBTRACT 64 from 70

=60

Bring Down: 0; this gives us 60.

Divide:

How many times can 16 go into 60? : About 7 times

No we have : 0.437..

Bring down 0; gives us 600: how many times can 16 go into 600?: About 5 times.

Now, we have 0.4375.


Thus, 7/16 = 0.4375.


Faith xoxo

</span>

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