PLS HELP SHOW ALL YOUR WORKING OUT AND BRAINLIEST WILL BE AWARDED

Mathematics

2 answers:

Sergeu [11.5K]2 years ago

7 0

That would be a=5.97cm

i attached the pic of the solution.

hammer [34]2 years ago

4 0

Answer:

5.97 cm to 3 significant figures.

Step-by-step explanation:

The diameter of the circle will be equal to the length of the diagonal of the square.

Area = 56 = πr^2

r^2 = 56 / π

r = √(56 / π) = 4.222 cm

So the diameter = 8.444 cm.

This is = diagonal of the square so, by The Pythagoras Theorem:

x^2 + x^2 = 8.444^2 where x is the side of the square.

x^2 = (8.444)^2 / 2

x^2 = 35.651

x = 5.971 cm

You might be interested in

Find x. (Use pic for more info)

V125BC [204]

Answer:

x=75

Step-by-step explanation:

Hey There!

If you didn't know the exterior angle of a triangle is equal to the sum of the opposite interior angles of a triangle

So essentially what I'm saying is that

2x-5=70+x

step 1 add 5 to each side

-5+5 cancels out

70+5=75

now we have

2x=70+x

step 2 subtract x from each side

x-x cancels out

2x-x=x

we're left with

x=75

8 0

2 years ago

Reference angle for -19pi/6?

kow [346]

$\bf \cfrac{19}{6}\implies 3+\cfrac{1}{6}
\\ \quad \\\\
\cfrac{-19\pi }{6}\implies -\left(3\pi +\cfrac{1\pi }{6} \right)\impliedby clockwise
\\ \quad \\\\
or\implies -\left(2\pi +\pi +\cfrac{\pi }{6} \right)$

go that much "clockwise", you'll end up at the 2nd quadrant,
the reference angle, is its reflective angle on the 1st quadrant