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1.    The triangle is a right triangle, as it has one right angle. It never said what the hypothesis is, or AC, and AB is 6 and BC is 8. 6 * 8 = 48   48 / 2 = 24 square units. 

2.    Because we know that a triangles angles can only equal 180, otherwise it is not a triangle, and we know two angles, we can subtract 180 from both of them. 180 - 135 - 30 = 180 - (135 + 30) = 180 - 165 = 15 degrees. 

I think that the answer is 130. I drew a diagram and place A, B, and C on random corners. BC has X, so I place X in the middle of BC. AX is 13, which is the height, and BC is 20, because 10 + 10 is 20, so 20 is the width. 20 * 13 / 2 is 10 * 13, or 130. 

If I am correct, you have already posted this question and someone has already answered you. If the guest account was not you, you should search the question before asking it. We do not like repetitious questions, or spammers. The links are: https://web2.0calc.com/questions/help-with-geo_28     and         https://web2.0calc.com/questions/help-with-geo_29

You mean his username in Brainly is CphiII? Is it double i's or double l's?

Bro. This is the forth time I saw you post this question. I already said multiple times, there is NO SOLUTION. So please stop spamming. 

Please speak english or mandarin, but please do not speak gibberish.