Question

Find the area of a right triangle two adjacent sides of right angle are 12 cm and 5cm and the perimeter is 30cm

Answer 1

Answer:

30 sq.cm

Step-by-step explanation:

Perimeter = 30cm

Third side = 30cm-(12+5)cm

= 13cm

$area \: of \: a \: triangle \: = \frac{1}{2} \times base \times height \\ area = \frac{1}{2} \times 12 \times 5 \\ area = \: \: 1 \times 6 \times 5 \\ area \: = 30 \: sq.cm$