Answer:
Step-by-step explanation:
The measure of the second angle = n
The measure of the first angle = 2*n
The measure of the third angle = n + 88
==================
n + 2n + n + 88 = 180
4n + 88 = 180
4n = 180 - 88
4n = 92
n = 92/4
n = 23
============
second angle = 23
First angle = 2*23= 46
Third angle = 23 +88 = 111
The total is 180
The answer is 8, because 3 is less than 5 and we are rounding it to the nearest whole number.
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Answer:
Step-by-step explanation:
We want to subtract 
from 
.
We set up the subtraction problem as follows:
.
We expand the brackets to obtain;
.
We regroup the terms to obtain;
.
We now simplify to obtain;
.
Answer:
178m squared
Step-by-step explanation:
make 3 rectangular shapes
shape 1 ) 18×5=90
shape 2) 13×6= 78
shape 3) 5×2=10
Add up all the answers and that's the ans
90+78+10=178
