I need help on number 6 and 7

1. c=13

2. a=12

Step-by-step explanation:

We have to use the Pythagorean theorm

a^2+b^2=c^2

(5*5)+(12*12)=c^2

25+144=c^2

169=c^2

Now we have to square root 169 to find c

c=13

For this one we have to do c^2-b^2=A^2

(15*15)-(9*9)

225-81=a^2

144=a^2

a=12

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2