The answer is 1224. You do 70.5 + 65.5, divided by two, then you take that answer and multiply by 18 to get 1224
Answer:
The answer is 21
Step-by-step explanation:
All you have to do is 9+12
Brainliest??
Basically there are 3 addition properties and they are associative property, identity property, and commutative property.
Commutative property is just changing the order of the addends. Example: 26+19+34+21= 21+34+19+26
Identity Property is just adding a 0 to the number that doesnt change anything. Example: 26+19+34+21 +0 = 100
Associative property is just changing the grouping of the addends. Example: (26+19) + (34+21)
I know these properties may be complicated i know inhate them too haha but i hope i helped :) if you want you can search up the distributive property too but its with multiplication and addition combined and its harder but i think these are the 3 main properties.
Answer:
27, 90 and 63
Step-by-step explanation:
Given
Ratio of triangle sides

Required:
The length of each side
Triangles in a triangle add up to 180.
The side with ratio 3 is:




The side with ratio 10 is:




Lastly:
The side with 7 as its ratio




Hence, the angles are: 27, 90 and 63