jacobdiamondfox5
jacobdiamondfox5 jacobdiamondfox5
  • 16-01-2020
  • Mathematics
contestada

can you solve this?

can you solve this class=

Respuesta :

jimrgrant1 jimrgrant1
  • 16-01-2020

Answer:

D

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = 0.5h(a + b)

where h is the perpendicular height and a, b the parallel sides.

Given A = 120, then

0.5 × 8(a + b) = 120, that is

4(a + b) = 120 ( divide both sides by 4 )

a + b = 30 cm → D

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