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madam [21]
3 years ago
9

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

Mathematics
1 answer:
Colt1911 [192]3 years ago
3 0
<h2>20</h2>

Hi, I’m Lena and I’ll be here to answer your question with a good-quality answer. If there's something I can improve, let me know! ツ

♡ Let’s look at the main important things that will lead you in the correct path.

♥ <em>a </em>+<em> b</em> usually = <em>c!</em> Unless the book asks you to find a specific variable, you will most likely be looking for <em>c</em>.

♥ <em>A</em> = <em>bh</em>/2! This is the formula for the area of a triangle. You can also read this as A = base * height/2. The good thing about this formula is you don't need a picture. You can write it as <em>a</em> * b<em> </em>or <em>b</em> * <em>a!</em>

<em />

♡ Now, let's solve!

♥ Plug the numbers into the formula: 5*8/2.

♥ Solve! In this case, we do not need c: 40/2 = 20.

Your answer should be 20! Please do not hesitate to ask me any questions.

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How to get rid of a square root in the denominator?.
Romashka [77]

Answer:

see explanation

Step-by-step explanation:

to clear a square root on the denominator

Multiply the numerator and denominator by the square root, for example

\frac{5}{\sqrt{3} }

= \frac{5}{\sqrt{3} } × \frac{\sqrt{3} }{\sqrt{3} } = \frac{5\sqrt{3} }{3}

4 0
2 years ago
Someone please help
kogti [31]

Answer:

I'm not 100% but I think it could be x4 and then +5?

Step-by-step explanation:

5 0
3 years ago
Help plz:)))I’ll mark u Brainliest
Anvisha [2.4K]

Answer:

The answer to the question provided is 14.4 ft.

Step-by-step explanation:

We can solve this using proportion!

\frac{18}{x}  =  \frac{10}{8}  \\  \\  \frac{10x}{10}  =  \frac{144}{10}  \\  \\ x = 14.4

3 0
3 years ago
What is 7/8 x 1/3 x 2/3? Pls help me.
Step2247 [10]
7/36
Multiply the top together and then the bottom together and the final numbers on top and bottom is your answer.
8 0
3 years ago
Read 2 more answers
Sara hina and Arslan have a total of RS 390in their wallet . Sara has Rs. 7more than Hina .Arslan has 3 times what sara has . Ho
Brums [2.3K]

Answer:Sara hina and Arslan Have RS79.4,RS 72.4 and RS238.2 respectively.

Step-by-step explanation:

Step 1

Let the amount that hina has be x

the amount that sara has be represented as  7+x

and the amount that Arslan have be represented as 3(7+x)

such that the total amount in their wallet which is 390 can be expressed as

x+7+x + 3(7+x)=390

Step 2

Solving

x+7+x +21+3x=390

5x+28=390

5x==390-28

x=362/5=72.4

Hina has RS 72.4

Sara =7+x==72.4+77= RS 79.4

Arslan =3(7+x)=3 x 79.4=RS 238.2

5 0
3 years ago
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