Question

find the area of the following​ :

Answer 1

Answer:

$by \: phythagorous \\ = > (13) {}^{2} = (5) {}^{2} +(b) {}^{2} \\ = > (b) {}^{2} = (13) {}^{2} - (5) {}^{2} \\ = > (b) {}^{2} = 169 - 25 \\ = > (b) {}^{2} = 144 \\ = > b = 12 \\ = > h = 5\\ then \: area \: of \: triangle \\ = > 1 \div 2 \times b \times h \\ = > 1 \div 2 \times 12 \times 5 \\ = > 6 \times 5 \\ answer = > 30$