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6 votes
6 votes
Find all the missing angles and side lengths

Find all the missing angles and side lengths-example-1
User Shaundell
by
2.4k points

1 Answer

25 votes
25 votes

use pythagoras theorem to find the missing side, then find the an angle using the sine rule. at this point you will only have one angle left. using the law that sum of all angles of a triangle add up to 180⁰, you can do 180⁰- ( [the angle you found by the sine rule] + 90⁰) hope this wasn't too complicated :)

i did (b) as an example attatched (2 photos bc it couldn't fit it all)

Find all the missing angles and side lengths-example-1
Find all the missing angles and side lengths-example-2
User Nef
by
2.8k points
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