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3 years ago

BRAINLIEST, THANK YOU, 5 STARS

Mathematics

2 answers:

Rus_ich [418]3 years ago

6 0

Answer:

2 (12x4) = 96

Step-by-step explanation:

Area is length multiplied by height and so its 12 x 4. But that is the dimensions for half of it and you need the full dimensions so you multiply it by two.

VMariaS [17]3 years ago

6 0

Answer:

24 ft²

Step-by-step explanation:

The area (A) of a triangle is calculated using the formula

A = $\frac{1}{2}$ bh ( b is the base and h the perpendicular height )

here b = 12 and h = 4, hence

A = $\frac{1}{2}$ ( 12 × 4) = $\frac{1}{2}$ × 48 = 24 ft²

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A two-story building measures 21 feet from the ground.Ascale model shows the building to be 3 inches tall. How many inches would

jasenka [17]

Answer: $12\ inches$

Step-by-step explanation:

Let be "x" the height inches (in the model) of a 84 foot building.

According to the information provided in the exercise, we know that the height of a two-story building is 21 feet and in the scale model its height is 3 inches.

Knowing this, we can set up the following proportion:

$\frac{3}{21}=\frac{x}{84}$

The final step is to solve for "x" in order to calculate its value. We get that this is:

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Therefore, an 84 foot building will be 12 inches tall in the model.

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