Question

Find the Area of Triangles when lengths of the sides are given below.

Answer 1

Explanation:

you should detect which one in the hypothenus!!

Answer 2

84 cm² and 272 cm² (3 sf)

Explanation:

Use Heron's formula.

Area =
`√(p(p-a)(p-b)(p-c))`

where a, b, and c are the lengths of the sides of the triangle

and
`p=(a+b+c)/(2)`

(i)
`p=(13+14+15)/(2)=21`

Area =
`√(21(21-13)(21-14)(21-15)) = 84` cm²

(ii)
`p=(103+115+13)/(2)=115.5`

Area =
`√(115.5(115.5-103)(115.5-115)(115.5-13)) = ( √(1183875))/(4) =272` cm² (3 sf)