Question

Calculate x by seeing the figure on the top
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Answer 1

Answer:

x=18cm

Step-by-step explanation:

In ΔABC,

(AC)²=(AB)²+(BC)²

(15)²=(AB)²+(12)²

225=(AB)²+144

(AB)²=225-144

(AB)²=81

AB√81

AB=9cm

x=2AB=2(9)=18cm

Answer 2

In a right angled triangle

15^2=12^2+ab

225=144+ab

225-144=ab

81=ab

ab=root over 81

ab=9 cm

so the medain of a triangle divides into two equal parts so

AB=BD

so

BD =9CM

SO X = AB+BD=9+9

X=18cm