Question

if the radio of two circles are 3 cm and 4 cm respectively.find the radius of the circle having area equal to the sum of the areas of two triangle​

Answer 1

Step-by-step explanation:

Let r1=4cm&r2=3cm

Now, area of new circle =πr12+πr22

                                 πr2=722((4)2+(3)2)

                        722×r2=722×25

                                   r2=25

                                     r=5cm

∴  Diameter of new circle =2r=10cm.