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liberstina [14]
3 years ago
15

Find a. Round to the nearest tenth: 2 cm с 150 1050 a = = [? ]cm

Mathematics
1 answer:
VLD [36.1K]3 years ago
6 0

Answer:

a = 1.8 cm

Step-by-step explanation:

Here. we want to find the value of a

To do this, we are going to use the sine rule

it states that the ratio of a side and the sine of the angle that faces the side is a constant for all the sides of a triangle

From the diagram, we have that;

The angle facing a is;

180-15-105 = 60

So, we have that

a/sin 60 = 2/sin 105

a = 2sin 60/sin 105

a = 1.794 cm

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Not my answers, but I hope this will help you. :)
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