I'm going to assume you've learn sin, cos, and tan. To find a you must do:

Once you find a, you can use the Pythagorean Theorem to find b:

Or you can do:

You can find these functions on a scientific calculator. Let me now if you need more help.
Answer:
<u>It</u><u> </u><u>is</u><u> </u><u>3</u><u>6</u><u> </u><u>cm</u>
Step-by-step explanation:
In equilateral triangle, all sides are equal.

but side = 12 cm

Answer:
y/4 + x/12
Step-by-step explanation:
The number of working toys = x
The number of broken toys = y
Bert breaks 1/3 of the working toys, that is:
1/3 * x = x/3
The number of broken toys is now:
y + x/3
Ernie then throws away 1/4 of the broken toys. In terms of x and y, the number of broken toys that Ernie threw away is:
1/4 *(y + x/3)
= y/4 + x/12
Answer:
If she only is going to pick two at random, the probability she picks a carrot then a leek is 4/27
12 girls
You can divide 48 by 2 then divide the answer by 2, to get the answer.