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2 years ago

Which are the coordinates of the vertices of a triangle congruent to ΔPQR?

Mathematics

2 answers:

user100 [1]2 years ago

7 0

Answer:

(4,3), (−4,8), (−4,3)

(2.5,−4), (0,0), (0,−4)

Step-by-step explanation:

On plotting on graph all form right angled triangle.

Dimension of all triangles and tanФ

Base=2 Height=5 tanФ 2.5
Base=5 Height=3 tanФ 1.6
Base=8 Height=5 tanФ 1.6
Base =2.5 Height=4 tanФ 1.6

[Here base and height can be interchanged if needed]

Ratio of perpendicular and base of last two triangle is equal.

First two are not congruent to any of other triangle but 3rd and 4th triangle are congruent .

Their coordinates are:

(4,3), (−4,8), (−4,3)

(2.5,−4), (0,0), (0,−4)

Maurinko [17]2 years ago

3 0

Answer: C

(4,3), (−4,8), (−4,3)

Step-by-step explanation:

Just did it on Edge

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2 years ago

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1 year ago

Use a net to find the surface area of the open cylinder with only one base. Use 3.14 for pi.

Mandarinka [93]

Answer:

251.20 cm square

Step-by-step explanation:

As given in figure

height of cylinder = 2 cm

radius of cylinder = 8 cm

lateral surface area of cylinder is given by = $\pi r l$

where r is the radius and l is the height

Therefore, lateral surface area of given cylinder

$\pi r l = 3.14*8*2 = 50.24$

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3 0

2 years ago

Select all that apply.

Mila [183]

First we need to have same units before comparing them. That is, either both of them are in cm or both of them are in mm. So if we need to convert 12.5 cm to mm, we know that 1 cm =10 mm. So we have to find out how many mm are in 12.5 cm. And let 12.5 cm =x mm. So to find the value of x , we set a proportion and solve for x. That is

$\frac{1cm}{10mm}=\frac{12.5cm}{x mm}$