2632*1340*-155*45*9198*14663*0*650*1310*18090
=0
All the angles should add up to 360°.
8x+10x+9+21x-12+90=360°
Group like terms together.
So,8x+10x+21x+9+90-12=360
39x+87=360
39x=360-87
39x=273
x=7
Answer:
b
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
=
, substitute values
=
( cross- multiply )
15YZ = 210 ( divide both sides by 15 )
YZ = 14 → b
Answer:
7
Step-by-step explanation:
because 1 = 400
2800 divided by 400 = 7
Answer:

Step-by-step explanation: