Question

7 Im Figure , BC is hypotenuse in right angled triangles
| AABC and ABIDO ÁC BO = {0} and oA=4 Oc=12
Loo=6 Then , Fird OB​

Answer 1

Answer:

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Step-by-step explanation:

C is the mid-point on AB, so that AC = BC

Now the mid-point of the hypotenuse of a right triangle is equidistant from the vertices.

Therefore, AC = BC = OC

hence, AC = BC = 6.5cm [since, OC = 6.5cm]

Now, AB = AC + BC = 6.5 + 6.5 = 13cm

According to Pythagoras rule,

 OB² = AB² - AO²

 OB² = 13² - 12²

 OB² = 169 - 144 = 25

 OB = √25 = 5cm 

4.5

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