Answer:
29^2 = 20^2 + AC^2
AC = 21
Area of ABC = (21 * 20 ) / 2 = 210 square centimeters
Volume = (20 * 21 * 300) / 2
Volume = 63,000 cubic centimeters
Explanation:
210 cm²
63000 cm³
a) A= AB*AC/2
AC= √29²-20²= √441= 21 cm
A= 20*21/2= 210 cm²
b) V=bl
b= 210 cm², l= 3m= 300 cm
V=210*300= 63000 cm³
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