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

for the first question it would be the second answer for the second question it would be the third answer and for the third question it would be the first answer

step-by-step explanation:

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step-by-step explanation: vsfdvsfvd