Question

in ∆LMN, 1 = 9,m = 15, n = 12 state whether ∆LMN is a right angled triangle or not​

Answer 1

triangle LMN.

Given=L=9,M=15, N=12.

by Pythagoras theorem

m^2 =n^2+l^2.

15^2= 12^2 + 9^2.

225 = 144 + 81.

225 = 225.

so triangle LMN is right angled triangle..

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