Question

solve this fast, correct answer will mark as brainleast..
dont write if u don't know or i will report​

Answer 1

Answer:

A≈118.59cm²

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Answer 2

Answer:

Let the unknown side be 'x'

x + 15 + 15 = 50

x + 30 = 50

x = 50 - 30

  = 20

Let a = 15, b = 15 & c = 20

Using HERON'S FORMULA,

= √s(s - a)(s - b)(s - c)

s = perimeter/2

  = 50/2

  = 25cm

s - a = 25 - 15

       = 10cm

s - b = 10cm

s - c = 25 - 20

       = 5cm

√s(s - a)(s - b)(s - c) = √25 × 10 × 10 × 5

                                = 10 × 5√5

                                = 50√5cm²

HOPE THIS HELPS... :)