I think 3 or 2 if this is not right am sorry ;-;
Answer:
C. a=12ft, b=12ft
Step-by-step explanation:
This is a 45*-45*-90* triangle
"a" and "b" are the same
and the hypotenuse (which is 12 square roots of 2) is square root of 2 times as long as each leg.
so the answer must be:
<u><em>a = 12ft, b = 12ft</em></u>
For angle A, you need to do 180-130 which is 50
for angle B, you need to do 180- 90 - 50 which is 40
for angle C, you need to do 180 - 60 - 40 which is 80
If you want me to explain you with further details with how exactly I got those answers and how I knew what to do, then ask me.
Answer:

Step-by-step explanation:

<em>OR</em>

Information on trigonometric ratios

I am joyous to assist you at any time.
Answer: after 5 hours, 75 cupcakes
Step-by-step explanation: