Determinati nr nat a b si c stiind ca a+b +c+d=20. A:b=0. C+d=1. D:=2
1 answer:
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First calculate the missing angle 
. By knowing all angles in triangle have a sum of 180°.
Now we required to use angle functions in a right triangle. The cosine of
is equal to the relation of side 
and hypotenuse 
.
Now we solve this for hypotenuse.
Now put in the numbers.
So we know the length of hypotenuse and length of side therefore side 
can be calculated using Pythagorean theorem: 
.
Solve for side.
So there you go. If you have any questions feel free to ask.
r3t40
Now we required to use angle functions in a right triangle. The cosine of
Now we solve this for hypotenuse.
Now put in the numbers.
So we know the length of hypotenuse and length of side
Solve for side
So there you go. If you have any questions feel free to ask.
r3t40
Answer:
27
Step-by-step explanation:
Let the number to find out be 'x'
Therefore,
according to the condition given question, we get the equation as
Now,
squaring both the sides, we get
2x - 5 = 49
on adding 5 both sides, we get
2x - 5 + 5 = 49 + 5
or
2x = 54
or
x =
or
x = 27
Hence, the number is 27