atlurisidharth atlurisidharth
  • 10-03-2019
  • Mathematics
contestada

The ratio of the perimeters of two similar triangles is 2:3, the sum of their areas is 260 cm2. What are the areas of each of these triangles?

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 10-03-2019

Answer:

80 cm², 180 cm²

Step-by-step explanation:

The ratio of areas is the square of the ratio of perimeters:

2²:3² = 4:9

The sum of these "ratio units" is 4+9 = 13, corresponding to a sum of areas of 260 cm². Hence each "ratio unit" represents (260 cm²)/13 = 20 cm². Then the two areas are ...

• 4×20 cm² = 80 cm²

• 9×20 cm² = 180 cm²

Answer Link

Otras preguntas

A force of 100 newtons is used to move an object a distance of 15 meters with a power of 25 watts. Find the work done and the time it takes to do the work.
A mature gymnosperm will possess all of the following EXCEPT A. seeds B. leaves C. flowers D. vascular tissue E. woody growth
What is a "pipel"? (Holocaust def.)
Shield volcano type of eruption?
What’s the efficiency of a car that uses 400,000 J of energy from gasoline to make 48,000 J of kinetic energy?
A 72-tooth gear is connected to a 12-tooth gear. If the large gear makes one complete turn, how many turns does the small gear make?
Describe how fossils help us understand the past. Provide an example.
According to Emerson, why should people trust themselves? more words the better
Mice and rabbits eat plants.Hawks eat mice and rabbits.Suppose a disease kills most of the rabbits In a meadow ecosystem.Which of These is LEAST LIKELY to happe
How do you say come on guys in spanish