7 * 8 - 4d = 8
56 - 8 = 4d
48 = 4d
d = 48 : 4 =
12
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7 * 8 - 4 * 12 = 8
Answer: The area of the triangle is: " 118.3 " m² .
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<u>Note</u>:
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Area of a triangle, "A":
A = (1/2) * b * h ;
in which: b = base length ;
h = perpendicular height;
A = (1/2) * (18.2 m) * (13 m) ;
A = 118.3 m² .
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Answer:
Line b and line c are perpendicular.
Step-by-step explanation:
Perpendicular lines have opposite reciprocal slopes, and -1/2 and 2 are opposite reciprocals.
