The area of a rectangular conference room is represented by the equation A=(x^2+16x+63) feet^2. If x = 10 feet and the width = (x+7) feet, what is the perimeter, in feet, of the room?

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.