6×12 = 72
72 - (3x3) = 63
63 in ^2
Answer:
base = 15 units
Step-by-step explanation:
We are given area of a triangle = 52.5 sq. units
Height is given as 7 and we have to find the base.
Using formula for area of triangle:
Area of triangle = 


52.5 * 2 = base × 7
105 = base × 7
base = 15
La raíz cuadrada de 3 es 1.73
Answer:
please send a picture so I can see