What is the area of a triangle whose sides measure 4 km, 5 km and 7 km?
A. 9.80 km²
B. 10.78 km²
C. 20.00 km²
D. 35 km²
E. 140 km²
Answer: A
What is the area of a triangle whose sides measure 4 km, 5 km and 7 km?
A. 9.80 km²
B. 10.78 km²
C. 20.00 km²
D. 35 km²
E. 140 km²
Answer: A