Question

1. ABC is a triangle right-angled at B. If AB = 10
cm and BC = 24 cm, find AC.
2. Which of the following can be the sides of a
right-angled triangle?
(i) 1.5 cm, 2 cm, 2.5 cm
(ii) 3 cm, 4 cm, 5 cm
(iii) 2.5 cm, 6.5 cm, 6 cm
(iv) 2 cm, 2 cm, 5 cm​

Answer 1

Answer:

second opinion is wright answer (2)

Answer 2

1 Question

ABC is a triangle right-angled at B. If AB = 10 cm and BC = 24 cm, find AC.

Answer

Given

• ABC is a triangle right-angled at B. If AB = 10cm and BC = 24 cm.

To Find

• AC.

Solution

AB = 10 cm

BC = 24 cm

AC = ?

Using pythagoras theorem:-

H² = B² + P²

H² = (24)² + (10)²

H² = 576 + 100

H² = $\sqrt{676}$

H² = 26

Hence,AC = 26 cm.

2 Question

Which of the following can be the sides of a

right-angled triangle?

(i) 1.5 cm, 2 cm, 2.5 cm

(ii) 3 cm, 4 cm, 5 cm

(iii) 2.5 cm, 6.5 cm, 6 cm

(iv) 2 cm, 2 cm, 5 cm

Answer

1.5 cm, 2 cm, 2.5 cm ✓

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