Pythagorean Theorem:
[tex]h=\sqrt[]{l^2_1+l^2_2}[/tex]
where l1 and l2 are the value of each leg, and h the hypotenus.
Replacing the values given, we get:
[tex]h=\sqrt[]{6^2+8^2}[/tex][tex]h=\sqrt[]{36+64^{}}[/tex][tex]h=\sqrt[]{100^{}}=10[/tex]
Answer: a. 10
