Well diameter will be the diagnol of that square..
let side of square be x, then diagonal will be root2 * x = diameter
so, raidus will be = dia/ 2
= (root2 * x ) /2
Answer:
66
Step-by-step explanation:
105+420=525 (Total Money)
7x3.25=22.75 (Cost of all bracelets)
8x11.74=93.92 (Cost of all necklaces)
93.92+22.75=116.67 (Cost of all Christmas presents)
525-116.67=408.33 (Total money - Cost of all Christmas presents)
408.33/6.15=66.39... (Amount of necklaces)
since in real life you can only buy a whole number of things, you would round down 66.39 to 66. I hope this helped!
Answer:
![A=2\sqrt{14}\ units^2](https://tex.z-dn.net/?f=A%3D2%5Csqrt%7B14%7D%5C%20units%5E2)
Step-by-step explanation:
we know that
Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.
so
![A=\sqrt{s(s-a)(s-b)(s-c)}](https://tex.z-dn.net/?f=A%3D%5Csqrt%7Bs%28s-a%29%28s-b%29%28s-c%29%7D)
where
a, b and c are the length sides of triangle
s is the semi-perimeter of triangle
we have
![a=5\ units,b=6\ units,c=3\ units](https://tex.z-dn.net/?f=a%3D5%5C%20units%2Cb%3D6%5C%20units%2Cc%3D3%5C%20units)
<em>Find the semi-perimeter s
</em>
s=![\frac{5+6+3}{2}=7\ units](https://tex.z-dn.net/?f=%5Cfrac%7B5%2B6%2B3%7D%7B2%7D%3D7%5C%20units)
Find the area of triangle
![A=\sqrt{7(7-5)(7-6)(7-3)}](https://tex.z-dn.net/?f=A%3D%5Csqrt%7B7%287-5%29%287-6%29%287-3%29%7D)
![A=\sqrt{7(2)(1)(4)}](https://tex.z-dn.net/?f=A%3D%5Csqrt%7B7%282%29%281%29%284%29%7D)
![A=\sqrt{56}\ units^2](https://tex.z-dn.net/?f=A%3D%5Csqrt%7B56%7D%5C%20units%5E2)
simplify
![A=2\sqrt{14}\ units^2](https://tex.z-dn.net/?f=A%3D2%5Csqrt%7B14%7D%5C%20units%5E2)
Isnt it 33 ////??? thats what i got.
1. You divide by 100 to find the decimal version of any percentage, and do the opposite for vise versa