A triangle is isosceles is the altitude from the vertex angle to the base also passes through the midpoint of the base. What are
the two slopes from the figure that prove this? M is the midpoint of triangle ABC.
-7 and 1/7
5 and -1/5
-5 and 1/5
7 and -1/7
-7 and 1/7
5 and -1/5
-5 and 1/5
7 and -1/7
1 answer:
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Use the equation for the area of a triangle:
where A = area, h = height of the triangle, and b = base of the triangle.
You know that h=18m and A=99
. Plug those values into the equation and solve for b, the base.
The base is 11m long.
where A = area, h = height of the triangle, and b = base of the triangle.
You know that h=18m and A=99
The base is 11m long.