Answer:
let required no be x

by doing crisscrossed multiplication

42=7x
dividing both side by 7

6=x
therefore x=6
therefore value of remaining no.is 6
Answer:
714
Step-by-step explanation:
5+2=7
7-6=1
1x4=4
Answer:
Its 3
Step-by-step explanation:
If its right can you give me brainlyiest
Answer:
True
Step-by-step explanation:
A rectangle is a plane figure with congruent length of opposite sides. Considering a rectangle ABCD,
AD ≅ BC (opposite side property)
AB ≅ CD (opposite side property)
<ABC = <BCD = <CDA = <DAC =
(right angle property)
Thus,
<ABC + <BCD + <CDA + <DAC = 
AC ⊥ BD (diagonals are perpendicular to each other)
AC ≅ BD (congruent property of diagonals)
Therefore, the parallelogram is a rectangle.