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14 votes
A triangle has an area of 13.5 square miles and a height of 4.5 miles. What is the length

of the base?

User Stefani
by
3.9k points

2 Answers

12 votes

Answer:

the length of the base= 6miles

Explanation:

Area of triangle =1/2 *Base*Hight

Now we sub the values in the formula:

13.5 = 1/2 * (length of the base) * 4.5

length of the base = (2 * 13.5)/4.5

length of the base = 6 miles

User Stephen Byrne
by
3.5k points
5 votes

Answer:

6 miles

Explanation:
Area is :


A = (1)/(2) hb OR
A = (hb)/(2)
So base is :

b = 2 (A)/(h)
Substituting values given:
b = 2 × (13.5÷4.5)
b = 2×3
b=6

User Kenneth Baltrinic
by
4.0k points