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.

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

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