Answer:
12cm
Step-by-step explanation:
bc= 13cm (c) hypotenuse is always c
dc= 10÷2. (b)/(a) it can be a or b, any also long it's not the hypotenuse
= 5cm
bd= use phytagoras theorem formula
c²=a²+b²
13²=5²+b²
169=25+b²
169-25=b²
144=b²
b=
[tex] \sqrt{144} [/tex]
b=12
bd=12cm
