Seudónimo Seudónimo
  • 01-11-2014
  • Mathematics
contestada

a trapezoid has an area of 20cm squared and a height of 5 cm. what is the sum of its top and bottom sides

Respuesta :

naǫ
naǫ naǫ
  • 01-11-2014
[tex]A=\frac{a+b}{2} h[/tex]
A - area
h - height
a+b - sum of its top and bottom sides

[tex]20=\frac{a+b}{2} \cdot 5 \\ 4 = \frac{a+b}{2} \\ a+b=8[/tex]

The sum of its top and bottom sides is 8 cm.
Answer Link

Otras preguntas

Why is external criticism so important when it comes to analyzing data
Why did the us not allow entrance to more refugees before wwii?
How to do this comebody help me
Which task is the responsibility of middle management? A. create company policies B. create organizational plans based on the company’s policies C. evaluate
15 in.18 in.8 in.plz help this is due tomarrow​
which type of map is most likely to show current air temperatures across a region? A. topographic B. weather. C. climate. D. physical
What statement about senators is true?
the slope of a horizontal line is
The presidential primary sysytem ____. A. Is used in almost all states. B. Was used in a few states in 2008. C. Has limited partisanship. D. Is determined by
Write a characteristic of the photic zone of a freshwater biome.