Chapter 21: Extra Practice 291Find the missing measurements.- In 'JAM, JA = AM. If mJ = 80r, find mA.
- If AR = 7 cm, RM = 13 cm, and 'ARM is isosceles, then AM = cm or cm.
- 'LEG is a scalene triangle. LE = 4 cm and EG = 17 cm. The length of LG must be at least
cm but not more than cm. - In 'MAT, MA = 4 inches, AT = 4 inches, and MT = 6 inches. Is 'MAT a right triangle?
- 'COW is a right triangle with right angle O. If CW = 65 cm, and CO = 25 cm, find the length
of OW. - If 'PAT # 'POT and mA = 70r, then mO = _____.
- 'DOG # 'CAT, and DO = 28 in., OG = 34 in., and DG = 45 in. How long is CT?
- 'HOG a 'PIG, and OGH and IGP are vertical angles. If HO = 14 cm, PI = 21 cm, and
HG = 18 cm, find PG. - 'RUG ~ 'LAP, and RU is 8 centimeters longer than LA. If RG = 14 cm and LP = 10 cm, find RU.
- 'PLA is a scalene triangle, and side LA is extended through A to point Y and beyond, to form
exterior angle PAY. If mPAY = 115r and mL = 75r, find mP.
Using the diagram, complete each sentence with parallelogram, rectangle, rhombus, or square.
- ACFH is a quadrilateral with AC FH, AH CF, and CA HA. ACFH is a __.
- BJ = JK = KD = DB. BDKJ is a __.
- JK GI and JI KG. JKGI is a __.
DCBA JKEFGHI