simrafarhan2k841 simrafarhan2k841

26-05-2021
Mathematics

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Can someone help with this ASAP

Can someone help with this ASAP class=

Respuesta :

promisechenda promisechenda

26-05-2021

Answer:

x=7cm.

Step-by-step explanation:

A=1/2(a+b)h.

63=1/2(6+12)x.

63=1/2(18)x.

63=9×x.

63/9=9×x/9.

7cm=x.

x=7cm.

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