For the angles, a, b, and c in the triangle ABC is known that a : b : c = 2 : 1 : 3. AL is an angle divider and CD is the altitude. If CD = 18 cm what's the length of AL (in cm)?

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.

You’re ordering more thread for blue jeans co. you usually purchase from ted’s threads, which sells 12 thread spools for $27. you recently received a notice from wade's wares that says you can buy thread from them for $2.30 each for the first 2 dozen and $2 a spool thereafter. you need to order 5 dozen spools. what percentage can you save by going with wade’s wares?

Acute identify < 1 and < 2 select all that apply of the following acute, right, obtuse, adjacent, vertical, complementary, supplementary