Question

find x in the figure all dimensions are in cm
​

Answer 1

Answer:

here it is a isosceles triangle where AC is a prependicular...

=>BC=CD

now in triABC angle C is 90°

=>by phy Thm

13^2=12^2 +BC^2

BC^2= 169-144

BC^2=25

BC=5 cm

and BC=x/2=>x=10 cm. (BC is half of x)

hope it help

Answer 2

Answer:

x = 10 cm

Step-by-step explanation:

In triangle ABC angle ACB is a right angle

so hypotenuse is 13 cm

by Pythagoras' theroem

12^2 +(x/2)^2 = 13^2

144 + x^2/4 = 169

x^2/4 = 25

x^2 = 100

x = √100

x=10

hope it helps....