Question

plz answer any question which you know and under stand ​

Answer 1

Answer:

Step-by-step explanation:

1   area = 90 cm²     base = 15 cm

    area =  1/2  x  base x height

    90  =   1/2 x 15 x height

     90 x  2  ÷  15  = height

height =   12 cm  

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