Step-by-step explanation:
[tex]1 \div 2 \times base \times height = area[/tex]
[tex]1 \div 2 \times x \times 42.2 = \ 369.25 \[/tex]
[tex]x = 369.25 \div 21.1[/tex]
[tex] = 17.5[/tex]
Answer:
Base = 17.5 inches.
Step-by-step explanation:
Given : A triangle has an area of 369.25 square inches. The height of the triangle is 42.2 inches.
To find : What is the length of the base of the triangle.
Solution : We have given
Area of triangle = 369.25 square inches.
Height = 42.2 inches.
Area of triangle = [tex]\frac{1}{2}*base*height[/tex].
Plugging the values.
369.25 = [tex]\frac{1}{2}*base*42.2[/tex].
On multiplying both sides by 2
369.25 * 2 = base * 42.2
738.5 = base * 42.2
On dividing both sides by 42.2
Base = 17.5 inches.
Therefore, Base = 17.5 inches.
