If ABCD congruent to QRST, mangleA = x – 10º, and mangleQ = 2x – 30º, what is the mangleA?

answer: A. 10⁰
step by step explnation:
If ABCD ≅ QRST, then m∠A = m∠Q,sox-10 = 2x - 302x-x=30-10x=20m∠A = x - 10 =20-10 = 10m∠A = 10⁰
Let's assume that these are congruent parallelograms..
Since, They are congruent their angles and sides will be equal.
[tex]\pink{⊱─━━━━━━━━⊱༻●༺⊰━━━━━━━━─⊰}[/tex]
[tex] \rm \: m∠A = m∠Q[/tex]
Solve for X using the equation...
[tex] \rm \: x - 10 = 2x - 30[/tex]
[tex] \rm \: x -2x = - 30 + 10[/tex]
[tex] \rm \: -x = - 20[/tex]
[tex] \rm \: x = 20[/tex]
[tex] \sf \: m∠A =x - 10 \\ = > \sf \: 20 - 10 \\ = > \sf \: 10 \degree[/tex]
[tex] \sf m∠Q =2x - 30 \\ = > \sf \: 2 \times 20 - 30 \\ = > \sf \: 10 \degree[/tex]