Question

can someone help me please??

Answer 1

By Pythagoras therom

(Hypotense)^=(9)^+(8)^

H^=81+64

H=√81+64

H=√145

Answer 2

Answer: √145 cm .

Step-by-step explanation:

The Pythagorean Theorem states that :-

If A,B,C are sides of a right-angled triangle where C is the hypotenuse , then A² + B² = C²

Here we know the value of A = 8 cm , and the value of B = 9 cm .

So 8² + 9² = C²

=> 64 + 81 = C²

=> 145 = C²

=> C = √145 cm ≈ 12.041 cm

So the value of the unknown side of the right-angled triangle is √145 cm .