Question

*A boy is trying to catch fish sitting on a pillar of height of 12 m from the surface of the water.A big fish is at a horizontal distance of 5 m from the pillar. What should be the length of his string to get that fish?*

1️⃣ 10 m
2️⃣ 13 m
3️⃣ 7 m
4️⃣ 15 m​

Answer 1

Given :

• A boy is trying to catch fish sitting on a pillar of height of 12 m from the surface of the water.
• A big fish is at a horizontal distance of 5 m from the pillar.

Have to find :

• What should be the length of his string to get that fish?

Solution :

See the diagram in the attachment :-

Now, According to it$.$

We are going to use Pythagoras Theorem

(AB)² = (BC) ² + (AC) ²

Here,

➹ BC = 12 m

➹ AC = 5 m

Substituting the values in it, we get -

→ (AB)² = (12) ² + (5) ²

→ (AB)² = 144 + 25

→ (AB)² = 169

→ AB = √169

AB = 13 m

Hence, Option B is correct

Answer 2

Question

A boy is trying to catch fish sitting on a pillar of height of 12 m from the surface of the water.A big fish is at a horizontal distance of 5 m from the pillar. What should be the length of his string to get that fish?

1). 10 m

2). 13 m

3). 7 m

4). 15 m

Given:-

• A boy is trying to catch fish sitting on a pillar of height of 12cm from the surface of the water.
• A big fish is at a horizontal distance of 5 m from the pillar.

To Find:-

What should be the length of his string to get that fish ?

Diagram:-

Diagram is in attachment.

Solution:-

AB = 12 m

AC = 5 m

AB = ?

By Using pythagoras theorem.

(AB)² = (12)² +(5)²

(AB)² = (BC)² + (AC)²

(AB)² = 144 + 25

(AB)² = 169

AB = √169

AB = 13 m

Hence, Length is 13 m.

Therefore,Option (2) is correct.