What is a formula that can be used to find the area of one triangular section of the door? How do you know the formula will work? (3 points) 30 pointss pls answer hurry

Area Of a Right Angled∆

=> 1/2 x Base x Height

Area of a ∆ Using Heron's Formula

=>

Where

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225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225