SOLUTION: The height of a triangle is 4cm less the length of the base. If the area is 30 square cm, what is the height and length of base. I know the formula and I plugged in numbers to fi
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Question 131462: The height of a triangle is 4cm less the length of the base. If the area is 30 square cm, what is the height and length of base. I know the formula and I plugged in numbers to find the answers (6cm + 10cm), but I cannot prove it algebraicly.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
For a triangle,
cm2
cm
multiply both sides by
Complete the square
(only the + square root makes sense here)
The base is 10 cm and the height is 6 cm
check:
OK
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