2 years ago

A flashlight is projecting a triangle onto a wall, as shown below.

Mathematics

1 answer:

zavuch27 [327]2 years ago

6 0

Answer:

Hence the correct option is 3rd option. 40

Step-by-step explanation:

If two figures are similar, then the ratio of the corresponding sides is proportional.

$\frac{15}{30} =\frac{20}{n} \\\\n=\frac{30 \times 20}{15} \\\\n= 40.$

You might be interested in

One angle in a triangle has a measure that is three times as large as the smallest angle. The measure of the third angle is 40 d

svetlana [45]

Answer:

84°

Step-by-step explanation:

smallest angle=x

3x=2nd angle

x+40=3rd angle

angles in a triangle add up to 180 degrees so

5x+40=180

5x=140

x=28

largest angle = 3x

so 3 x 28 = 84 degrees

The largest angle is 84 degrees

7 0

2 years ago

Read 2 more answers

Can someone help?

nydimaria [60]

Answer:

run = 1081.6 ft

Step-by-step explanation:

sin = opp/hyp

sin18 = 3500 / run

run = 3500 / sin18

run = 1081.6 ft

4 0

2 years ago

Read 2 more answers

You have learned that different types of rocks are found in Earth’s layers. Their composition affects their densities.

gtnhenbr [62]

Answer:

c the number of the person who is this and what is the address of the house and the

Step-by-step explanation:

thanks for your help and support you in whatever way you can get a good

6 0

2 years ago

Read 2 more answers

The area is approximately __ square units,.<br><br> use 3.14 for pi

fenix001 [56]

757 units squared. Here is work:

7 0

2 years ago

If n is an even number.<br> (b) What type of number is n + 1?

NeTakaya

Answer:

An odd number

Step-by-step explanation:

suppose n is 2.

If we add 1 into it, the answer will be 3, making it odd. same goes for any other even number if 1 is added in it

5 0

2 years ago