Question

2. Задание, помогите пожалуйста

Answer 1

$\frac{CM}{MN} = \frac{1}{4} , \: CM = 1x, \: MN = 4x;$

$CM + MN = CN = 24.5 cm,$

$1x + 4x = 5x = 24.5cm,$

$x = 24.5cm \: \div 5 = 4.9cm$

$CM = 1x = 1 \times 4.9cm = 4.9cm, \:$

$MN = 4x = 4 \times 4.9cm = 19.6cm$

Ответ: CM = 4.9 см, MN = 19.6 см.