Question

D) The diagonal of the rectangle are congruent.
3 3) Prove that the sum of measures of all the angles of a triangle is 180°
Solve any and.
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Answer 1

Answer:

easy to prove

Step-by-step explanation:

angle 1+2+3+4= 180

angel 1+3=90

angel 2+4=90

adding both of them

angle 1+2 or 3+4

90 +90=180

Hence proved that angle 1+2+3+4=180.