Question

Pleaseee helppp question 7​

Answer 1

the area of triangle ΔPHK is

Explanation:

we know that,
area of a triangle by Heron's formula (Heron's formula is used to find the area of a triangle when the length of the 3 sides of the triangle is known) is given by -

Step 1: Find the semi-perimeter (half perimeter) of the given triangle by adding all three sides and dividing it by 2.

- 10+11+17/2 = 19

Step 2: Apply the value of the semi-perimeter of the triangle in the main formula called 'Heron’s Formula'.

`Area = √s(s−a)(s−b)(s−c)`
√19(19-10)(19-11)(19-17)
√19(9)(8)(2)
√2736
52.30
52
therefore are ofΔPHK is 52KM