Answer:
Measure of the 4th angle = 360-(102+84+77)
= 360-263
= 97°
Hope this helps!
The answer would be because
Answer:
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Step-by-step explanation:
Method 1:
You can use the formula of an area of equilateral triangle:
a - length of side
We have a = 10 yd. Substitute:
Method 2:
Use the Pythagorean theorem (look at he picture).
<em>subtract 25 from both sides</em>
The formula of an area of a trinagle:
b - base
h - height
We have b = 10 yd and h = 5√3 yd. Substitute:
According to the valence number of copper(2+) and the same value for chlorine (1-) copper (II) chloride has the formula of CuCl2
The molar mass of copper is 0,0635 kg/mole and chlorine gas a molar mass of 0,035 kg/mole the compound will have a molar mass of ( 0,0635+2×0,035 )kg/mole=0,099kg/mole and 0,344 moles are equivalent in mass to 0,344×0,135 kg=0,046 kg
