What is the solution to the system of equations? O (-8,-4) O(-4,-8) O (44) 0 (4-4)
2 answers:
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the length of the side of this square is cm
Answer:
Solutions Given:
let diagonal of square be AC: 8 cm
let each side be a.
As diagonal bisect square.
let it forms right angled triangle ABC .
Where diagonal AC is hypotenuse and a is their opposite side and base.
By using Pythagoras law
hypotenuse ²=opposite side²+base side²
8²=a²+a²
64=2a²
a²=
a²=32
doing square root on both side
a=±
a=±2*2
Since side of square is always positive so
a=4 or 5.65 cm
Answer:
or
Step-by-step explanation:
we know that
Applying the law of cosines
In this problem we have
substitute the values