Question

An isosceles triangle SAS parameter 40cm each of the following as equal sides 15 CM find the third types of triangle

Answer 1

Answer:

Perimeter =30 cm

semiparameter(s)=

2

perimeter

⇒2S=30,S=15

⇒12+12+x=30 ⇒ x=6

⇒A=

s(s−a)(s−b)(s−c)

(Heron's formula)

⇒A=

15(15−12)(15−12)(15−6)

=

15(3)(3)(9)

⇒A=9

15

cm

2