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14 votes
14 votes
How do you solve this

How do you solve this-example-1
User Stas Parshin
by
3.3k points

1 Answer

15 votes
15 votes

use sine law. x = 16.3cm

Explanation:

Since triangle angles add up to 180 deg

angle F = 180 -87 -40 = 53

side EF/ sin (angle G) = side EG / sin (angle F )

EF / sin(87) = 13 / sin(53)

EF = 13/sin(53) × sin(87)

EF = 16.3cm

User Venu Gopal Tewari
by
2.9k points