Question

Find the unknown side of the triangle below (round to the nearest tenth).

A. 18 cm
B. 22.9 cm
C. 26.9 cm
D. 21.2 cm

Please answer this

Answer 1

`answer = 22.9 \: cm \\ solution \\ hypotenuse = 25 \: cm \\ perpendicular = x \\ base = 10 \: cm \\ now \\ using \: pythagorus \: theorem \\ {h}^(2) = {p}^(2) + {b}^(2) \\ or \: {p}^(2) = {h}^(2) - {b}^(2) \\ or \: {x}^(2) = {25}^(2) - {10}^(2) \\ or \: {x}^(2) = 625 - 100 \\ or \: {x}^(2) = 525 \\ or \: {x} = √(525) \\ or \: x = 22.9 \: cm \\ hope \: it \: helps`