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IrinaK [193]
3 years ago
8

A triangle has a base of 10 cm its other sides are both 13cm long calculate the area

Mathematics
2 answers:
earnstyle [38]3 years ago
7 0

Answer:

60 cm^2

Step-by-step explanation:

defon3 years ago
7 0
Answer: 60cm^2

Explanation:

Since both sides are 13cm it tells us that it is an isosceles triangle.

And we can find the height by using Pythagorean’s theorem.

If we cut the isosceles triangle into 2 same right triangles, we can take one of the right triangle and we can work out the height.

I added a picture, please check it out.

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1 hour and 40 minutes

Step-by-step explanation:

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2 years ago
Find the value of x. Round to the nearest tenth.please help.
Serga [27]

Answer:

39.9

Step-by-step explanation:

A good trick to remember is SOH CAH TOA.

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5 0
3 years ago
How do you solve <br> -178=-5x+4(-4x-13)
Effectus [21]

Answer:

x = 6

Step-by-step explanation:

  • <em><u>Pull out like factors: </u></em>

-4x - 13  =   -1 • (4x + 13)

  • <em><u>Equation at the end of step 2: </u></em>

 -178 -  (-5x +  -4 • [4x + 13] )  = 0

  • <em><u>Pull out like factors: </u></em>

  21x - 126  =   21 • (x - 6)

  • <em><u>Equation at the end of step 4: </u></em>

 21 • (x - 6)  = 0

  • <em><u>Solve:</u></em>

x-6 = 0  

  • <em><u>Add 6 to both sides of the equation:</u></em>

x = 6

5 0
3 years ago
Fie A(-1,2) B(3,-1) C(4,-1)
Iteru [2.4K]

do you mind rephrasing it in english

will

4 0
3 years ago
Read 2 more answers
Please help me asap <br> What is the value of x? 3 6 27 72
fredd [130]
The answer to your question is 3
5 0
3 years ago
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