Question

please answer These questions fastly

Answer 1

area of triangle =1/2 ×base ×height
by Pythagoras theorem find height of triangle and then solve

Answer 2

here u have to use herons formula.....

i) a=13m,b=14m,c=15m
so finding semi perimeter i.e.
s = a+b+c/2. = 42/2 = 21m
$area =\sqrt{s(s - a)(s - b)(s - c)}$
so....
√ 21 (7)(8)(9)
multiply and get it....