trillstonecole trillstonecole
  • 08-04-2016
  • Mathematics
contestada

Two circles have the same radius. Is the combined area of the two circles the same as the area of a circle with twice the radius? Explain.

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 08-04-2016
ok so area=pir^2

2 circles with same area=2pir^2

circle with 2 times radius=pi(2r)^2=pi4r^2=4pir^2

is 2 circles with same area equal to circle with 2 times radius?
is 2pir^2=4pir^2?
is 2=4?
no


therfor the answer is no

it is because the radius is squaered so the doubled gets doubled makng it quadrupuled when the first one only gets doubled
Answer Link

Otras preguntas

ANSWER THIS WORD PROMBLEM PLZZ: Trevor bakes 8 batches of biscuits,with 14 biscuits each batch. He sets aside 4 biscuits from each batch for a bake sale and
solve the inequality 11d - 9 < 15d + 3
Carl has three lengths of cable. 5/6 yard long, 1/4 yard long, and 2/3 yard long. He needs at least 1 yard of cable. After Carl has used 1 yard of cable, how mu
Suppose Ken has 25 coins and nickels and dimes only and has a total of a $1.65 how many of each coin does he have?
I don't get how to solve for x with prathesis
What is a logarithmic function?
The two bones of the lower arm are _____.
Climatology is a subspecialty of what?
How can you use an array to show the commutative property
PLEASE FOR 50 POINTS WHAT IS THE SOLUTION TO: -7(x-4)+8x=12+14 x=? WHAT DOSE X EQUAL?
good job