Find the area of the circle with a radius of 2 cm.
a 12.56 cm2
b 26.34 cm2
C 14.26 cm
d 32.12 cm2
GETAHINT

a 12.56 cm2

Step-by-step explanation:

area = πr² or I'd

step 1: substitute (plug in) for r which in here is 2

π(2)²

step 2: follow order of operations

(2)²= 4 *π= 12.56

P- parenthesis

E-exponent

MD- multiply and divide from left to right

AS- add and subtract from left to right

b. 2

step-by-step explanation:

the slope of a line =δy/δx

δy= y₂-y₁

δx= x₂-x₁

therefore, using the points (-2,-3)   and (3,7) we can calculate gradient as follows:

m=(7--3)/(3--2) (a number minus a negative number the sign changes to a plus)

m=(7+10)/(3+2)

=10/5

=2