Tuklasin kung paano ka matutulungan ng IDNStudy.com na makuha ang mga sagot na kailangan mo. Magtanong ng anumang bagay at makatanggap ng kumpleto at eksaktong sagot mula sa aming komunidad ng mga propesyonal.
10
It is said that the diagonals of a rectangle are congruent or equal.
So if AC and BD are the diagonals of the given rectangle, then they are congruent.
[tex]\overline{AC} \cong \overline{BD}[/tex]
[tex]4x-30=x[/tex]
[tex]4x - x = 30[/tex]
[tex]3x = 30[/tex]
[tex]\frac{3x}{3} =\frac{30}{3}[/tex]
[tex]x = 10[/tex]
So if the measure of diagonal AC = 4x - 30, then:
[tex]4(10)-30\\40-30 = \underline{\bold{10}}[/tex]
[tex]\overline{AC} =\overline{BD}=10[/tex]