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Airida [17]
3 years ago
9

What information about a triangle is necessary in order to use the cosine

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
6 0
It is not 90 degrees it is 87
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Add please -35.25+(8.5)
givi [52]

Answer:

Hello the answer is -23.75

plus +minus=Minus so we will minus it

5 0
3 years ago
Read 2 more answers
What is the distance around a triangle that has sides measuring 2 1/8 feet, 3 1/2 feet, and 2 1/2 feet?
Alex787 [66]
Hi!
A is the answer:⏬⏬⏬⏬⏬⏬⏬⏬

The distance around a triangle, better noun as de "perimeter of a triangle"

is the total distance around the outside, which can be found by adding together the length of each side.

Perimeter (P) = Length A + Length B + Lenght C

In this case, we know that each side measure 2 \frac{1}{8}81​ feet, 3 \frac{1}{2}21​ feet, and 2 \frac{1}{2}21​feet  but we have to rewrite each one of this mixed fractions as improper fractions:

2 \frac{1}{8}81​ = \frac{16 + 1}{8}816+1​ = \frac{17}{8}817​   

3 \frac{1}{2}21​ = \frac{6 + 1}{2}26+1​ = \frac{7}{2}27​

2 \frac{1}{2}21​ = \frac{4 + 1}{2}24+1​ = \frac{5}{2}25​

Then we just add all of them to find the perimeter:

 = \frac{17 + 28 + 20}{8}817+28+20​ = \frac{65}{8}865​

A: The distance around a triangle is \frac{65}{8}865​feet
3 0
3 years ago
Read 2 more answers
Which lengths could be the sides of a triangle?
galina1969 [7]
345,354,354,341,098cm
5 0
3 years ago
A bird's nest is 12 feet above the ground. A mole's den is 12 inches below the ground. What is the difference in height of these
zysi [14]

Answer:

13ft

Step-by-step explanation:

12in = 1ft the difference in height is 13ft

8 0
2 years ago
A seamstress has a piece of cloth that is 3 yards long. she cuts it into shorter lengths of 16 inches each. how many of the shor
Fittoniya [83]
First of all we need to convert the 3 yards to inches, So 3 * 12 = 36

36 / 16 = 2.25

I hope this helps :)
8 0
3 years ago
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