3 years ago

A flashlight is projecting a triangle onto a wall

Mathematics

2 answers:

yawa3891 [41]3 years ago

6 0

Answer:

Step-by-step explanation:

The the triangles are similar, the lengths of corresponding sides are in proportion.

15/20 = 18/n

3/4 = 18/n

1/4 = 6/n

n = 4 × 6

n = 24

adelina 88 [10]3 years ago

6 0

Answer:

n = 24

Step-by-step explanation:

In similar triangles, corresponding sides are in same ratio.

$\dfrac{n}{18}=\dfrac{20}{15}\\\\\\n=\dfrac{20}{15}*18\\\\\\n = 4*6\\\\n = 24$

You might be interested in

Help me this one out, pls?

Flura [38]

Answer:

∠ACD= 109°

Step-by-step explanation:

∠A=38

180- ∠A= ∠B+C

180-38= 2∠B( ∠B=∠C) ( angles opposite to equal sides are equal)

142=2∠B

∠B=71

∠ACD=∠A+∠B ( exterior angle property)

∠ACD= 38+ 71= 109°

4 0

3 years ago

Anthony leans a 28-foot ladder against a wall so that it forms an angle of 76° with the

Sphinxa [80]

Answer:

18 is your answer

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

To write 10-7 in standard form, you would write a decimal number with:

Natali5045456 [20]

10^-7 = 0.0000001

Its the 3rd choice.

8 0

4 years ago

Ken is 6 feet tall and is walking away from a streetlight. The streetlight has its light bulb 14 feet above the ground, and Ken

frosja888 [35]

Distance = Y=1.7t
L = 6sin(tan^-1(d/8))
L = 6sin(tan^-1(1.7t/8))

6 0

4 years ago

Juan's card was worth $800. Over the last 5 years, the collection decreased $300 in value, what integer represents the average d

sladkih [1.3K]

800-500 =300 5 times 100=500 it decreases by 100 each year
I hope that helps

7 0

3 years ago