S34smurf10
S34smurf10 S34smurf10
  • 06-04-2020
  • Mathematics
contestada

Help please! Please find the missing base!!!

Help please Please find the missing base class=

Respuesta :

Ic28 Ic28
  • 06-04-2020

Answer:

21.21

Step-by-step explanation:

Answer Link
exeHacker exeHacker
  • 06-04-2020

Answer:

The missing base is three.

Step-by-step explanation:

We know that 1/2*height(b1+b2)=area. So 3.5(b1+b2)=21. 7*b=21. b=3.

Answer Link

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