Final answer:
The Sixth and Seventh Amendments provide for the right to a jury trial in both criminal and civil cases.
Step-by-step explanation:
The constitutional amendments that provide for the right to a jury trial in both criminal and civil cases are the Sixth and Seventh Amendments.
The Sixth Amendment guarantees the rights of the accused to counsel and a speedy trial by an impartial jury, to be informed of the charges against them, and to confront witnesses.
The Seventh Amendment ensures the right to jury trials in most civil cases, where the value in controversy exceeds twenty dollars.