Let

be the length of the square, then the area is

. Hence, the side is the positive root of the area, which is
Answer:
70
Step-by-step explanation:
We know that to find the area of a triangle, you need is formula:
(base*height)/2
The height is 10 m and the base is 14 m, so the area is:
(10 m*14 m)/2
=140 m/2
=70 m
The area of the triangle is 70 m.
The answer is “a-10”
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