Wednesday

April 16, 2014

April 16, 2014

Posted by **Brigitta** on Thursday, January 31, 2013 at 10:56pm.

- math -
**Reiny**, Thursday, January 31, 2013 at 11:51pmdid you make a sketch?

I have a large isosceles triangle containing your original trapezium

The sides of the triangle are made up of the segments 10 and 8 for a total length of 18 each

I see a smaller isosceles triangle contained and similar to a larger isosceles triangle

let the smaller base be x

remember the sides of similar triangles are in the same ratio

so....

x/8 = 20/18

x = 8(20/18) = 80/9 or appr. 8.89 cm

- math -
**Brigitta**, Friday, February 1, 2013 at 11:03pmthank u so much!:)

**Related Questions**

Math - Each equal side of an isosceles triangle is 3 1/2 inches longer than the ...

algebra - The base of an isosceles triangle and one of its legs have lengths ...

math - prove that the diagonals of isosceles trapezium are equal

geometry - the longer base of an isosceles trapezoid is 14 feet. the nonparallel...

prealgebra - a traffic sign is in the shape of an isosceles triangle. each of ...

math - The parallel sides of a trapezium are 6cm and 5cm long and 4cm apart.what...

Math - The area of a trapezium is 360 in2. If the ratio of the bases to the ...

math - the base of an isosceles triangle i 5 and its perimeter is 1. the base of...

math - the base of an isosceles triangle is 5 and its perimeter is 11. The base ...

maths - a trapezium with its parallel sides in the ratio16:5,is cut from a ...