Posted by **jani** on Wednesday, October 6, 2010 at 11:57am.

points a,b,c,and d lie on a straight line in the given order. AC = 25 cm and BD = 46 cm. The ratio of length CD to AB is 5/2. Find the length of line segment BC in cm.

sorry miss the CD part

- math -
**Reiny**, Wednesday, October 6, 2010 at 12:07pm
ahh, that's better

make a sketch of a line and label point A, B, C, and D

using CD : AB = 5:2

label AB = 2x and CD = 5x , giving you the 5:2 ratio

From AC = 25 you can now label BC as 25-2x

From BD = 46 you can label BC as 46-5x

so obviously 25-2x = 46-5x

x = 7

sub back in either of BC expressions, to get BC = 11

- math -
**jani**, Wednesday, October 6, 2010 at 12:27pm
thanks :D

- math -
**Anonymous**, Monday, October 15, 2012 at 2:06pm
given formula fro "c" : A= one half (h b + b c)

- math -
**bobby**, Sunday, September 14, 2014 at 2:41pm
11

- math -
**Tahsin**, Sunday, February 8, 2015 at 4:53pm
The answer is 11!!!😄😄😄😄😄😃😃😃😃😀😀😀😉😉😉😉😉😀😀😀

## Answer This Question

## Related Questions

- maths - points A,B,C and D lie on a straight line in the given order. AC=25cm ...
- math - points a,b,c,and d lie on a straight line in the given order. AC = 25 cm ...
- Mathematics - Two points C and P lie on straight line such that C is due north ...
- Mathematics - Two points C and P lie on a straight line such that C is due north...
- Maths - Two points C and P lie on a straight line such that C is due north of P....
- Math - 1. the points given are two of the 3 vertices of a right triangle. Which ...
- math - x^2 + y^2 - 8x -2y -3 = 0 the points S and T lie on the circumference of ...
- math - I have 14 questions and I was wondering if someone could check my answers...
- math - Find all points (x,y) that are 13 units away from the point (2,7) and ...
- math - show that the points A(0,-4) B(3,-1) C(-3,-1) lie on the circle whose ...

More Related Questions