Midsegments of triangles
Grade 10 Math Worksheet - Challenge Me

Circle the best answer, or write your answer on the line.
Kira walks in a triangular park. Its three midsegments form △QSU, with sides 13, 17 and 20 m. What is the perimeter of △DFG, in m?
Luz studies three towns on a map. Its three midsegments form △UYQ, with sides 21, 28 and 35 miles. What is the perimeter of △CHW, in miles?
Sketch, not to scale: △CHW with midpoints U, Y and Q; the three midsegments form △UYQ, with sides 21, 28 and 35. Sketch, not to scale: △CHW with midpoints U, Y and Q; the three midsegments form △UYQ, with sides 21, 28 and 35. 35 28 21 C H W U Y Q Not to scale. Milo looks at a triangular sail. Its three midsegments form △DHW, with sides 5, 7 and 9 feet. What is the perimeter of △SGV, in feet?
Sketch, not to scale: △SGV with midpoints D, H and W; the three midsegments form △DHW, with sides 5, 7 and 9. Sketch, not to scale: △SGV with midpoints D, H and W; the three midsegments form △DHW, with sides 5, 7 and 9. 5 9 7 S G V D H W Not to scale. Noah folds a paper triangle. Its three midsegments form △CYG, with sides 8, 11 and 12 cm. What is the perimeter of △FQU, in cm?
Sketch, not to scale: △FQU with midpoints C, Y and G; the three midsegments form △CYG, with sides 8, 11 and 12. Sketch, not to scale: △FQU with midpoints C, Y and G; the three midsegments form △CYG, with sides 8, 11 and 12. 8 11 12 F Q U C Y G Not to scale. Ren looks at the triangular front of a tent. WY = (2x + 1) feet, CU = (3x + 6) feet and WQ = (3x + 2) feet. How long is HU, in feet?
Sketch, not to scale: △HCU with midpoints W on HC, Y on HU and Q on CU; WY ∥ CU and WQ ∥ HU. HC = 20, WY = 2x + 1, CU = 3x + 6, WQ = 3x + 2. Sketch, not to scale: △HCU with midpoints W on HC, Y on HU and Q on CU; WY ∥ CU and WQ ∥ HU. HC = 20, WY = 2x + 1, CU = 3x + 6, WQ = 3x + 2. H C U W Y Q HC = 20 2x + 1 CU = 3x + 6 3x + 2 Not to scale Tala cuts a triangular slice of pizza. GD = (3x − 2) cm, SV = (5x + 2) cm and GF = (x + 7) cm. How long is QV, in cm?
Sketch, not to scale: △QSV with midpoints G on QS, D on QV and F on SV; GD ∥ SV and GF ∥ QV. QS = 24, GD = 3x − 2, SV = 5x + 2, GF = x + 7. Sketch, not to scale: △QSV with midpoints G on QS, D on QV and F on SV; GD ∥ SV and GF ∥ QV. QS = 24, GD = 3x − 2, SV = 5x + 2, GF = x + 7. Q S V G D F QS = 24 3x − 2 SV = 5x + 2 x + 7 Not to scale Zee walks in a triangular park. YC = (x + 8) m, WH = (4x − 14) m and YG = (2x − 9) m. How long is UH, in m?
Sketch, not to scale: △UWH with midpoints Y on UW, C on UH and G on WH; YC ∥ WH and YG ∥ UH. UW = 40, YC = x + 8, WH = 4x − 14, YG = 2x − 9. Sketch, not to scale: △UWH with midpoints Y on UW, C on UH and G on WH; YC ∥ WH and YG ∥ UH. UW = 40, YC = x + 8, WH = 4x − 14, YG = 2x − 9. U W H Y C G UW = 40 x + 8 WH = 4x − 14 2x − 9 Not to scale Bo looks at the triangular front of a tent. The crossbar UY joins two midpoints, m∠CUY = (2x + 15)° and m∠CWH = (4x − 21)°. What is m∠WUY, in degrees?
Sketch, not to scale: △CWH; U is the midpoint of CW and Y is the midpoint of CH (each half carries a tick mark); segment UY is drawn, with arrows on UY and WH. m∠CUY = (2x + 15)°, m∠CWH = (4x − 21)°. Sketch, not to scale: △CWH; U is the midpoint of CW and Y is the midpoint of CH (each half carries a tick mark); segment UY is drawn, with arrows on UY and WH. m∠CUY = (2x + 15)°, m∠CWH = (4x − 21)°. C W H U Y (2x + 15)° (4x − 21)° Not to scale Esme looks at the brace under a ramp. The bar SF joins two midpoints, m∠GSF = (6x − 8)° and m∠GVQ = (4x + 20)°. What is m∠VSF, in degrees?
Sketch, not to scale: △GVQ; S is the midpoint of GV and F is the midpoint of GQ (each half carries a tick mark); segment SF is drawn, with arrows on SF and VQ. m∠GSF = (6x − 8)°, m∠GVQ = (4x + 20)°. Sketch, not to scale: △GVQ; S is the midpoint of GV and F is the midpoint of GQ (each half carries a tick mark); segment SF is drawn, with arrows on SF and VQ. m∠GSF = (6x − 8)°, m∠GVQ = (4x + 20)°. G V Q S F (6x − 8)° (4x + 20)° Not to scale Jun cuts a triangular wedge of cheese. The cut CH joins two midpoints, m∠WCH = (5x − 7)° and m∠WUD = (2x + 23)°. What is m∠UCH, in degrees?
Sketch, not to scale: △WUD; C is the midpoint of WU and H is the midpoint of WD (each half carries a tick mark); segment CH is drawn, with arrows on CH and UD. m∠WCH = (5x − 7)°, m∠WUD = (2x + 23)°. Sketch, not to scale: △WUD; C is the midpoint of WU and H is the midpoint of WD (each half carries a tick mark); segment CH is drawn, with arrows on CH and UD. m∠WCH = (5x − 7)°, m∠WUD = (2x + 23)°. W U D C H (5x − 7)° (2x + 23)° Not to scale