He believed the helsinki accords were a failure a. truman b.churchhill c. kennedy d. reagan

I believe the answer is D. Reagan
At a national convention, Reagan criticised the Hellinski accord as 'being too compromising with the soviet union'
The accord basically gave the soviet union enough access to obtain modern western technology.

Answer

Find the volume of the coin is cubic millimeters.

To prove

Formula

Where r is the radius and h is the height .

As given

The $1 coin depicts Sacagawea and her infant son.

The diameter of the coin is 26.5 mm, and the thickness is 2.00 mm.

Radius = 13.25 mm

Put in the formula

Volume  of  coin  = 3.14 × 13.25 × 13.25 × 2.00

                            = 1102.53 mm³ (approx)

Therefore the volume of the coin is 1102.53 mm³ .