A triangle has an area of 30 cm². The base and height are scaled by a factor of 3.

1 answer:

4 0

Area of a triangle:
A = a * h / 2
where a is the base and h is the height.
For a new triangle:
A ( new ) = 3 a * 3 h / 2 = 9 * a * h / 2 = 9 A
A ( new ) = 9 * 30 = 270 cm²
Answer: The area of resulting triangle is 270 cm² .

You might be interested in

On a number line what is the distance between -3/2 and 6?

sesenic [268]

Answer:

7.5 units

Step-by-step explanation:

The distance is always positive and is same as the absolute value of subtraction of the two numbers on the line.

This can be shown as:

|-3/2 - 6| =
|-1.5 - 6| =
|-7.5| =
7.5

| 6 - (-3/2)| =
|6 + 1.5| =
|7.5| =
7.5

6 0

2 years ago

Read 2 more answers

ΔABC with vertices A(-3,-3), B(6,3), and C(6,-9) is dilated by a scale factor of 1/3 from the origin. What are the coordinates o

Dovator [93]

Answer:

(-1,-1)

Step-by-step explanation:

7 0

3 years ago

A manufacturer has fixed costs of $16,000 per month and can produce w widgets at a cost of 0.1w^(2) + 20w. How many widgets shou

musickatia [10]

Consider c as the cost of the widget so that our given equation is
c = 0.1w^2 + 20w
Take the derivate of the equation.
d/dt (c = 0.1w^2 + 20w)
dc/dt = 0.2w + 20
Given dc/dt = $16000 per month, the number of widgets would contain:
16000 = 0.2w + 20
-0.2w = 20 - 16000
-0.2w = -15980
w = 79900 widgets

5 0

2 years ago

HELP URGENT STEP FUNCTIONS!!!!!!! Used books cost $2.25 each. Which expression represents the total number of books that can be

irinina [24]

Answer:

A. $\left \lfloor \frac{10}{2.25} \right \rfloor$