Answer:
9.5
Step-by-step explanation:divide area by 12.3
i think it is right
u= 19 miles
Step-by-step explanation:
Area of triangle= ½ ×base ×height
Given that the area is 116.85 mi² and height= 12.3 mi,
116.85= ½ ×u ×12.3
6.15u= 116.85
u= 116.85 ÷6.15 <em>(</em><em>÷</em><em>6.15</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>
u= 19 mi
