Question

Explain well plzz,............ . . . . . . . . .

Answer 1

(1)

Answer - Option - (C)

a^2bc^3 = 5^3   ----- (1)

ab^2 = 5^6.   ----- (2)

Now,

On solving (1) & (2), we get

a^2bc * ab^2 = 5^3 * 5^6

a^3b^3c^3 = 5^9

(abc)^3 = 5^9

(abc) = 5^3



(2)

Answer - Option (C)

Given radius  = 10cm.

We know that Area of an Equilateral triangle inscribed in a circle:

$A = \frac{ \sqrt{3} }{4} * 3r^2$

           $= \frac{ \sqrt{3} }{4} * 3 * (10)^2$

           $= \frac{ \sqrt{3} }{4} * 300$

           $= 75 \sqrt{3}$



Hope this helps!

Answer 2

Hi,

Please see the attached file!


Thanks