Question

7. A tree is broken at a height of 5 m from the ground and its top touches the ground at a distance of 12 m from the base of the
tree. Find the total height of the tree before it was broken.
answer = 17m​

Answer 1

Answer:

18m

Step-by-step explanation:

explanation in above picture.

Answer 2

Answer:

Let A'CB represents the tree before it broken at the point C and let the top A' touches the ground at A after it broke. Then ΔABC is a right angled triangle, right angled at B.

AB=12m and BC=5m

Using Pythagoras theorem, In ΔABC

(AC)2 +(AB)2 +(BC)2

⇒(AC)2=(12)2 +(5)2

⇒(AC)2 =144+25

⇒(AC)2 =169

⇒AC=13m

Hence, the total height of the tree=AC+CB=13+5=18m.

Step-by-step explanation:

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