Aballoon has a circumference of 16 cm. use the circumvents to approximate the surface area of the balloon to the nearest square centimeter. a. 804 cm ^2 b. 326 cm^2 c. 256 cm^2 d. 81 cm^2 !

3 ft

step-by-step explanation:

since the triangle is right use pythagoras' identity to solve for a

the square on the hypotenuse is equal to the sum of the squares on the other two sides, that is

a² + 8² = ( )²

a² + 64 = 73 ( subtract 64 from both sides )

a² = 9 ( take the square root of both sides )

a = = 3

answer: sensy

step-by-step explanation: