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Cerrena [4.2K]
3 years ago
12

In an isosceles triangle, the perimeter is 75 cm and one of the sides is 25 cm. Find all its sides. Can you find all angles of t

he triangle? Explain your answer.
Mathematics
2 answers:
ioda3 years ago
6 0
All are 25 cm is the answer

kramer3 years ago
4 0
A triangle has 3 sides.

To find the perimeter, you would take the length off all sides and add them together.

Since the perimeter of the triangle is 75 cm, and one side is 25, you would take the perimeter and divide it by the number of sides in the triangle.

75/3=25

To check your work you would take 25 and multiply that by 3. If you get 75, then you got it right ;-)

Therefore, 25cm would be your answer for all the sides of the triangle.

-

In order to find the angles of all the sides, a triangle has a total of 180°.

You would then take 180° and divide it by the number of sides the triangle has which is 3.

180°/3= 60°

You would check your work by multiplying 60 by 3 which is 180

60° would then be the angles of all the sides in the triangle.

Hope this helps explain!
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Enter the trigonometric equation you would use to solve for x. Do not solve the equation.
pentagon [3]

Answer:

x=12\times \text{tan}(20^0)

Step-by-step explanation:

From the figure attached,

Measure of an angle = 20°

Measure of the opposite side = x

Measure of the adjacent side = 12

By applying tangent rule in the given right triangle,

tan(20°) = \frac{\text{Opposite side}}{\text{Adjacent side}}

\text{tan}(20^0)=\frac{x}{12}

x=12\times \text{tan}(20^0)

Therefore, equation to get the value of 'x' will be,

x=12\times \text{tan}(20^0)

3 0
3 years ago
0.54 + 17/100 = blank/100 + 17/00
krek1111 [17]

Answer:

54 i think

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
123.7 cm= How many meters?
Oduvanchick [21]

123.7 cm = 1.237 meters

hope it helps.

6 0
3 years ago
Is this correct?
ioda
Um
first note that x=-7 is not allowed in the soltions set
multiply both sides by x+7
make a sign chart and input values and see what they are

ok so we know we have zeroes at x=-9 and x=11
and x=-7 is not allowed so

see attachment


at x=-10,, we get a negative sign so it is less than 0
at x=-8, we get a positive sing, so it is more than 0
at x=-3, we get a negative sign, so less than 0
at x=20, we get a positive sign,so greater

so then

we do from negative inity to -9
and not between -9 and -7
between -7 and 11
so then

(-infinity,-9)U(-7,11]

6 0
3 years ago
Determine the sum of the given probabilities. Are the events complementary?
Anna11 [10]
The answer to your question is c
7 0
3 years ago
Read 2 more answers
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