The radii of two concentric circles are 13cm and 8cm . AB is the diameter of the bigger circle . BE is the tangent in the smaller circle touching it a D . Find the length of AD

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

7

step-by-step explanation:

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)