geometry

posted by .

Triangle ABC is similar to triangle DEF. The sides of ABC are 5,8 and 11. What is the length of the shorttest side of DEF if its perimeter is 60?

• geometry -

Since the sides must be in the same ratio...

let the sides of the new triangle be
5x, 8x, and 11x

5x + 8x + 11x = 80

solve for x, then find 5x

• geometry -

5x + 8x + 11x = 60 , hit the wrong key

• geometry -

12.5

• geometry -

mc069-1.jpg
In mc069-2.jpg, FE = 13 and mc069-3.jpg. Find DF to the nearest tenth.

Similar Questions

1. geometry

In similar triangles ABC and DEF, corresponding sides AB and DE equal 15 and 12, respectively. If the perimeter of triangle ABC=40, what is the perimeter of triangle DEF
2. geometry

"Triangle DEF is similar to triangle ABC, and the length of side DE is 6 cm. The length of side AB is 2 cm. If the area of triangle ABC is 5 square cm, what is the area of triangle DEF?
3. Math

If triangle ABC is similar to triangle DEF and the perimeter of ABC is 4 times greater than the perimeter of DEF , what is the relationship between the areas of the triangles?
4. Math (Geometry)

The perimeter of right triangle ABC is equal to the perimeter of isosceles triangle DEF. The lengths of the legs of the right triangle are 6 and 8. If the length of each side of the isosceles triangle is an integer, what is the greatest …
5. geometry

triangle abc is similar to def, the lengths of the sides of triangle abc is 5,8,11. what is the length of the shortest side of triangle def if its perimeter is 60?
6. Algebra

Triangles ABC and DEF are similar. Find the area of triangle ABC. Round your answer to the nearest tenth. Triangle ABC has a base of 12m. Triangle DEF has a base of 18m and height of 12m
7. geometry

In the accompanying diagram, triangle ABCis similar to triangle DEF, AC = 6, AB = BC = 12, and DF = 8. Find the perimeter of triangle DEF.   it an isoslese triangle 6 and 8 are both base my work 6+2=8 12+2=14 2(14)+6=p …
8. Math that needs an answer in the next 5-10 min!!!

Triangle ABC is similar to triangle DEF. Side AB is , and side DE is 6. The scale factor of ABC:DEF is 9. A) TRUE B) FALSE I think its A but I'm not entirely sure... PLZ HELP ASAP!!
9. math

if triangle ABC is similar to triangle DEF and the scale factor is 3, what is the length of side EF if side BC is 6m?
10. geometry

Let the incircle of triangle $ABC$ be tangent to sides $\overline{BC}$, $\overline{AC}$, and $\overline{AB}$ at $D$, $E$, and $F$, respectively. Prove that triangle $DEF$ is acute. I have tried proving that triangle DEF's angles were …

More Similar Questions