Respuesta :

Area of a triangle = 1/2 x base x height
= 1/2 x 6 x 7 = 3 x 7 = 21 square units.

Answer:

D 21 Units

Step-by-step explanation:

Area of a triangle = 1/2 x base x height

= 1/2 x 6 x 7 = 3 x 7 = 21 square units.

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