Question

Calculate the radius of a circle whose area is equal to the sum of the areas of three circles of radio 2 cm, 3 cm, 4 cm respectively.​

Answer 1

Answer:

Area of three circles = pie*2square+pie*3square+pie*4square (Pie r square)

A=pie*4+pie*9+pie*16

A=pie*29

area of unknown circle=pie r square

divide both sides by pie:

r square =29

r= root 29

Step-by-step explanation: