Answer:
Step-by-step explanation:
40% of 780 = 312.
780- (312+180)
= 288
What they said was correct!!
confirming
Answer:
x=39 degrees
Step-by-step explanation:
28+33+x=100
61+x=100
Answer:
DE = 81
Step-by-step explanation:
The sides of a rhombus are congruent , thus
9z = z + 72 ( subtract z from both sides )
8z = 72 ( divide both sides by 8 )
z = 9
Then
BC = 9z = 9 × 9 = 81
Since the sides are congruent, then DE = 81