Question

the area of two equal circles in the figure is 308 CM

square find the perimeter of the rectangle

Answer 1

Area of two equal circles is 2 x pi r²
=>2 x 22/7 x r x r=308
=>r²=308/2 x 7/22
=>r²=49
=>r=√49=7cm,,
Now,
2r = diameter of circle = length of rectangle
length=14 cm
radius of circle = breadth of rectangle=7 cm
∵Perimeter of rectangle = 2(l+b)
                                       = 2(14+7)
                                       = 2 x 21 = 42cm

∴The perimeter of the rectangle is 42 cm,,
        

Answer 2

i hope this will help you