Isaac is cutting wood to build a clock. He wants the clock to have a long hand that extends from the center to the edge of the clock face. What must the approximate area of the face be if the hand he is using is 5 inches long? Use three point one four for pi.

nineteen point six three square inches

thirty-one point four square inches

sixty-two point eight square inches

seventy-eight point five square inches

Question

Isaac is cutting wood to build a clock. He wants the clock to have a long hand that extends from the center to the edge of the clock face. What must the approximate area of the face be if the hand he is using is 5 inches long? Use three point one four for pi.

 nineteen point six three square inches

 thirty-one point four square inches

 sixty-two point eight square inches

 seventy-eight point five square inches

anonymous · Answer

Now, the formula for the area of a circle is pie (3.14 x radius2). Plug in 8 for the radius, and solve!

3.14 x 8^2 =?