Question

What is the length of side bd?
b
13 cm
a
d
C
10 cm

Answer 1

12cm

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=

`√(144)`

b=12

bd=12cm