Question

Help pls.. will mark brainliest...

Answer 1

Answer:

Step-by-step explanation:

We identify that the sides are are:

18 : 24 : 30 = 3 : 4 : 5.

As 3^2 + 4^2 = 5^2, it is a Right angle triangle.

Area = 1/2 × 18 × 24 = 216 cm^2.

In general we can use the formula:

s = (a+b+c)/2 = 36.

Area = Sqrt[ s (s - a) (s - b) (s - c) ]

= Sqrt[ 36 × 18 × 12 × 6]

= Sqrt(36× 3×6×3×4×6)

= 6×3×6×2= 216 cm^2.

Hope it helps you my dear friend..

Please mark my answer as brainliest.. ❤

Answer 2

here is your answer: