Skills · Geometry · Triangles
Corresponding parts
Printable practice with an answer key the engine computes, at three levels, in as many versions as you need.
Problem types
- a side, by the statement: △ABC ≅ △DEF, the sides of △ABC labeled: find DE
- an angle, by the statement: △ABC ≅ △DEF, two angles of △ABC labeled: find m∠F
- the match read off the marks, x asked: tick marks on every side, DE = 2x + 3: find x
- a pair in x, by the statement: △ABC ≅ △DEF, AB = 15 and DE = 2x + 3: find x
- both in x, the measure asked: AB = 3x + 4 and DE = 5x − 10: find DE
Sample Sheet · Level 1
△ABC ≅ △DEF. Find DE.
△ABC ≅ △DEF. Find m∠F.
△ABC ≅ △DEF. Find DE.
△ABC ≅ △DEF. Find m∠F.
△ABC ≅ △DEF. Find DE.
△ABC ≅ △DEF. Find m∠D.
△ABC ≅ △DEF. Find DE.
△ABC ≅ △DEF. Find m∠E.
Answer key
- 15 units
- 54°
- 17 units
- 61°
- 5 units
- 72°
- 7 units
- 50°
Sample Sheet · Level 3
The triangles are congruent, with m∠B = 57°, m∠C = (5x − 29)° and m∠F = (3x + 3)°. Find m∠F.
△ABC ≅ △DEF, with m∠C = (6x − 7)° and m∠F = (3x + 26)°. Find m∠F.
△ABC ≅ △DEF, with m∠B = (2x + 17)° and m∠E = (4x − 15)°. Find m∠E.
△ABC ≅ △DEF, with m∠A = (9x + 33)° and m∠D = (7x + 39)°. Find m∠D.
△ABC ≅ △DEF, with m∠B = (9x − 16)° and m∠E = (6x + 17)°. Find m∠E.
The triangles are congruent. Find DF.
△ABC ≅ △DEF, with m∠C = (3x − 4)° and m∠F = (5x − 26)°. Find m∠F.
△ABC ≅ △DEF, with m∠B = (4x − 38)° and m∠E = (2x − 2)°. Find m∠E.
Answer key
- 51°
- 59°
- 49°
- 60°
- 83°
- 24 units
- 29°
- 34°
Make your own
Pick the count, the level and the version, and print it with work space and the key on its own page. The same skill also makes an I Do, We Do, You Do lesson, a Mosaic, a Decoder and more.