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Ket [755]
3 years ago
12

How do you find the area of a triangle if you only know it's three sides?

Mathematics
1 answer:
DiKsa [7]3 years ago
8 0
You would have to find the height.

To do this, you cut the triangle from the upper vertex to the base to create two new triangles.

Then you use the Law of Cosines. You could use the google calculator for this by searching “law of cosines calculator” and inputting the values, but in case of a test, the formula is a^2 = b^2 + c^2 - 2bc cosA

If you could provide an example of a triangle, I will gladly help you with the steps! Hope this helped!
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Jaylen and six of her younger siblings have ages that are consecutive. When they moved from San Francisco to Chicago, their ages
Otrada [13]

Answer:

Jaylen was 16 years old. She's the oldest.

Step-by-step explanation:

16  Jaylen

15  sibling 1

14  sibling 2

13  sibling 3

12 sibling 4

11  sibling 5

10  sibling 6

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91  Total

My thinking was that I started out dividing 91 by 7. That came out 13. So I knew the oldest one had to be older than 13.

3 0
3 years ago
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vladimir2022 [97]
They are asking for the y coordinate of the g I guess
If that is the case, the answer is 1
3 0
3 years ago
Solve equation <br><br> r/3-4=11<br><br> r = 45 <br><br> r = 35<br><br> r = 33<br><br> r = 28
Molodets [167]

Answer:

r=-11

Step-by-step explanation:

7 0
3 years ago
What are the first four terms in the sequence Tn=4n+9?
marysya [2.9K]

Answer: If the initial term of an arithmetic sequence is a 1 and the common difference of successive members is d, then the nth term of the sequence is given by: a n = a 1 + (n - 1)d The sum of the first n terms S n of an arithmetic sequence is calculated by the following formula: S n = n (a 1 + a n)/2 = n [2a 1 + (n - 1)d]/2

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Simplify to the extent possible:<br><br> (logx16)(log2 x)
olga55 [171]

Answer:

Step-by-step explanation:

Use the change-of-base rule.

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