Solved on Dec 21, 2023

Find the height hh of a triangle given its area AA and base bb, where A=12bhA = \frac{1}{2} b h. Choose the correct formula for hh.

STEP 1

Assumptions
1. The formula for the area of a triangle is A=12bh A = \frac{1}{2} b h
2. We need to solve for h h

STEP 2

To solve for h h , we need to isolate h h on one side of the equation. We start by multiplying both sides of the equation by 2 to eliminate the fraction.
2A=212bh 2 \cdot A = 2 \cdot \frac{1}{2} b h

STEP 3

The 2 on the right side of the equation cancels out the 12\frac{1}{2}, simplifying the equation to:
2A=bh 2A = b h

STEP 4

Now, we need to isolate h h by dividing both sides of the equation by b b .
2Ab=bhb \frac{2A}{b} = \frac{b h}{b}

STEP 5

The b b on the right side of the equation cancels out, leaving h h isolated:
h=2Ab h = \frac{2A}{b}

STEP 6

We have now solved for h h in terms of A A and b b , and the correct answer is:
h=2Ab h = \frac{2A}{b}
This corresponds to option D) h=2Ab h = \frac{2A}{b} .

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