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High School Math : Pre-Algebra

Study concepts, example questions & explanations for High School Math

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8 Diagnostic Tests 613 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #722 : High School Math

What is the area of a triangle with a base of and a height of ?

Possible Answers:

Correct answer:

Explanation:

The formula for the area of a triangle is $A=\frac{1}{2}b*h$ .

Plug in our given values.

$A=\frac{1}{2}b*h$

$A=\frac{1}{2}5*12$

$A=\frac{1}{2}*60$

A=30

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Example Question #5 : How To Find The Area Of A Triangle In Pre Algebra

What is the base of a triangle if the height is and the area is ?

Possible Answers:

2.5

Correct answer:

Explanation:

The formula for the area of a triangle is $A=\frac{1}{2}*b*h$ .

Plug in our given values.

$50=\frac{1}{2}*b*20$

Combine like terms.

$50=(\frac{1}{2}*20)*b$

50=10*b

Divide both sides by to isolate .

$\frac{50}{10}=b$

5=b

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Example Question #723 : High School Math

What is the area of a triangle with a base of and a height of ?

Possible Answers:

180

360

270

188

Correct answer:

180

Explanation:

The equation for the area of a triangle is

$A=(\frac{1}{2})(base)(height)$

We plug the base of and the height of into the equation to get

$A=(\frac{1}{2})(4)(90)$

We then multiply to get the answer of A=180 .

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Example Question #7 : How To Find The Area Of A Triangle In Pre Algebra

What is the area of a triangle with a base of and a height of ?

Possible Answers:

8.06

Correct answer:

Explanation:

The formula for the area of a triangle is $A=\frac{1}{2}bh$ .

Plug in our given values and solve.

$A=\frac{1}{2}bh$

$A=\frac{1}{2}(4)(7)$

A=2*7

A=14

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Example Question #8 : How To Find The Area Of A Triangle In Pre Algebra

What is the area of a triangle with a base of and a height of 120 ?

Possible Answers:

A=200

A=4800

A=2400

A=9600

Correct answer:

A=4800

Explanation:

The equation for the area of a triangle is .

We plug the base of and the height of 120 into the equation to get $A=\frac{1}{2}(80)(120)$ .

We then multiply to get the answer of A=4800 .

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Example Question #8 : How To Find The Area Of A Triangle In Pre Algebra

What is the area of a triangle with a base of and a height of ?

Possible Answers:

A=192

A=112

A=120

A=98

Correct answer:

A=112

Explanation:

The equation for the area of a triangle is

We plug the base of and the height of into the equation to get

$A=(\frac{1}{2})(8)(28)$

We then multiply to get the answer of A=112 .

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Example Question #11 : How To Find The Area Of A Triangle In Pre Algebra

What is the area of a triangle with a base of and a height of ?

Possible Answers:

Correct answer:

Explanation:

To find the area of a triangle, use the equation:

$Area=\frac{1}{2}(Base)(Height)$

Substitute the given values for base and height into the equation:

$Area=\frac{1}{2}(5)(14)$

Area=35

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Example Question #451 : Pre Algebra

Find the area of a triangle with a base of 3 inches and a height of 14 inches.

Possible Answers:

$48\ in^{2}$

$21\ in^{2}$

$52\ in^{2}$

$24\ in^{2}$

$42\ in^{2}$

Correct answer:

$21\ in^{2}$

Explanation:

Apply the formula for the area of a triangle: $\frac{1}{2}bh$

A = 3 * 14 * (1/2) = 21

Make sure that your units are squared.

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Example Question #452 : Pre Algebra

Find the area of a triangle with a base of 16 meters and a height of 4 meters.

Possible Answers:

$112\ m^{2}$

$32\ m^{2}$

$108\ m^{2}$

$30\ m^{2}$

$64\ m^{2}$

Correct answer:

$32\ m^{2}$

Explanation:

Area of a triangle = $\frac{1}{2}bh$

= (1/2) * 16 * 4

= 32

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Example Question #453 : Pre Algebra

What is the area of this triangle?

Possible Answers:

Correct answer:

Explanation:

The area of a triangle can be calculated using this equation $\small A=\frac{1}{2}bh$ .

In this question, the base, , is . The height, , is .

$\small A=\frac{1}{2}bh=\frac{1}{2}(8)(6)=\frac{1}{2}(48)=24$

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High School Math : Pre-Algebra

Study concepts, example questions & explanations for High School Math

All High School Math Resources

Example Questions

Example Question #722 : High School Math

Example Question #5 : How To Find The Area Of A Triangle In Pre Algebra

Example Question #723 : High School Math

Example Question #7 : How To Find The Area Of A Triangle In Pre Algebra

Example Question #8 : How To Find The Area Of A Triangle In Pre Algebra

Example Question #8 : How To Find The Area Of A Triangle In Pre Algebra

Example Question #11 : How To Find The Area Of A Triangle In Pre Algebra

Example Question #451 : Pre Algebra

Example Question #452 : Pre Algebra

Example Question #453 : Pre Algebra

All High School Math Resources

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