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4 years ago

There are 3 ways you can prove triangles similar without having to use all sides and angles?

Mathematics

1 answer:

bagirrra123 [75]4 years ago

5 0

You can tell if they're similar if they:

1) Have two of the same angles

2) If two pairs of corresponding angles in a pair of triangles are congruent.

3) If they are the same shape

You might be interested in

Fractions in simplest form that have denominators of 2,

Montano1993 [528]

One of the fractions could be 1/2

Hoped this helped at all :)

8 0

3 years ago

4.. Please help. Is DE←→ perpendicular to FG←→? Why or why not?

olya-2409 [2.1K]

Given:

DE contains the points D(1, -2) and E(3, 4).

FG contains the points F(-1, 2) and G(4, 0).

To find:

Is DE perpendicular to FG.

Solution:

Slope of DE:

$$m=\frac{y_2-y_1}{x_2-x_1}$

Here $x_1=1, y_1=-2, x_2=3, y_2=4$

$$m=\frac{4-(-2)}{3-1}$

$$m=\frac{6}{2}$

m = 3

Slope of FG:

$$m=\frac{y_2-y_1}{x_2-x_1}$

Here $x_1=-1, y_1=2, x_2=4, y_2=0$

$$m=\frac{0-2}{4-(-1)}$

$$m=\frac{-2}{4+1}$

$$m=\frac{-2}{5}$

Two lines are perpendicular if product their slopes are -1.

Slope of DE × Slope of FG

$$=3\times \frac{-2}{5}$

$$= \frac{-6}{5}$

≠ -1

The solution is no, because the product of the slopes is not -1.

3 0

3 years ago

Read 2 more answers

Melissa is planning a rectangular vegetable garden with a square patch for tomatoes. She wants the length of

e-lub [12.9K]

The length of the vegetable garden as a function of its length will be given as:

y = 3x + 2

The expression of the garden width in terms of the width of the tomato patch is given as:

y = x + 5

Let the length of the garden be y

Let the length of the tomato patch be x

If Melissa wants the length of the garden to exceed three times the length of the tomato patch by 2 feet, the length of the vegetable garden as a function of its length will be given as:

y = 3x + 2

If she also wants the garden's width to exceed the width of the tomato patch by 5 feet, the expression of the garden width in terms of the width of the tomato patch is given as:

y = x + 5

Learn more on functions here: brainly.com/question/19999031

3 0

3 years ago

PLS HELP MY HWS DUE IN 20MINS PLS SHOW WORK TOO TY solve for x

Tems11 [23]

Answer:

13x+2+5x-7+3x-4=180

13x+5x+3x=180-2+7+4

21x/21=189/21

X=9

Please put the degrees sign there

Step-by-step explanation:

5 0

3 years ago

What is 2(9x+3)+5x=48+2x

kati45 [8]

2(9x + 3) + 5x = 48 + 2x
18x + 6 + 5x = 48 + 2x
23x + 6 = 48 + 2x
23x - 2x = 48 - 6
21x = 42
x = 42/21
x = 2

4 0

3 years ago