The formula to find the surface area of a sphere is given by the formula: A= 4 π r2

Where A = Area r= radius π = approx. 3.1416

a) Solve for π

b) The radius of the moon is about 1079 miles. Calculate the surface area using this number. (Give the proper units)

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

cut 138 centimeters off

step-by-step explanation:

250-112 = 138

need more information

step-by-step explanation: