Question

I need the answer and explain please and thank you.

Answer 1

Answer: 30°

Explanation: so we know line F has to be 180° because it’s a line. it tells us the angle is 140°, so we know the interior angle is 40° because 180°-140°=40°. we also know that a triangle is 180°. so we have the two angles of the triangle: 110° and 40°. to find the third angle we find 110°+40°+?=180°. once we solve, we know the third angle is 30° because 180°-150°=30°.

hope this helped!

Answer 2

Use cos sin and tan and looks up rules of cos sin tan and it will show you the rules and use those methods to plug into your equation