Answer:
I don't know bro actually which question ❓
Answer:
associative property of multiplication
Step-by-step explanation:
You cant rlly explain, you just have to know your properties
Answer:
(a is size of side of triangle)
the perimeter of equilateral triangle =3a
or, 36=3a
Thus, a = 13cm
area of equilateral triangle
=√3/4*(a^2 )
=√3/4*(13^2)
=73cm^2
Answer:
2800 - 4000
Step-by-step explanation:
40 × 70 = 2800
50 × 80 = 4000