Question

8. Which of the following lengths can be the sides of a right-angled triangle?
a. 2 cm, 7 cm, 10 cm
c. 4 cm, 7.5 cm, 8.5 cm
b. 9 cm, 12 cm, 15 cm
d. 1.6 cm, 8.4 cm, 8.5 cm​

Answer 1

Answer:

c. 4²+ (7.5)²=(8.5)² so it can be the sides of right angled triangle. and

b. 9²+12² = 15² it also can be the sides of right angled triangle.

so, correct ans. are b and c.

make me brainlist

Answer 2

Answer:

c 4cm,7.5cm,8.5cm

Step-by-step explanation:

{The sides of a triangle which form a Pythagoras triplet must form a right angled triangle. Which means sum of the squares of the small two no. from the given set must be equal to the the square of third no. (a)²+(b)²=(c)²}

so, here only c option forms Pythagoras triplet

(4)²+(7.5)²=(8.5)²

16+56.25=(8.5)²

72.25=(8.5)² {72.25=8.5²}

so,

72.25=72.25

Also B as

(9)²+(12)²=(15)²

81+144=222

225=225