Answer:
-3.85
-3 is a whole number, it comes before the decimal point.
17/20 is a fraction so it goes on the other side.
Answer:
(2l + 2w) + (a + b + c)
Step-by-step explanation:
The formula for the perimeter of a rectangle is
P = 2l + 2w
so if you substitute, it becomes
P = 2(12) + 2(2)
= 24 + 4
= 28
For the perimeter of a triangle the correct formula would be
P = a + b + c
The missing side in the triangle is 3 because 15 - 12 is 3.
If you substitute, it becomes
P = 2 + 3 + 6
P = 11
If we add both perimeters together we get the full perimeter of the figure which is
28 + 11 = 39
I am not sure if you wanted the answer as well but just in case :)
((5-2)*180)/5=SPT
SPT=108
360-(108+90)=RPT
RPT=162
((n-2)*180)/n=162
162n=(n-2)*180
.9n=n-2
.1n=2
n=20
Answer:
8
Step-by-step explanation:
a² = 10² - 6²
a² = 100 - 36
a² = 64
a = √64
a = <u>8</u>
So, the value of a is 8
<em>Hope </em><em>this </em><em>is </em><em>helpful </em><em>and </em><em>useful </em><em>:</em><em>)</em>
Answer:
8, 4, and 2 can not be the lengths of the sides of a triangle.
Step-by-step explanation:
If a and b are the two side's length of a triangle then the length of the third line (c) will be governed by the relation
(a+ b) > c > (a - b)
Now, the two sides length of a triangle are given by 8 and 4 then the length of the third side (x) will be given by
(8 + 4) > x > (8 - 4)
⇒ 12 > x > 4 ........... (1)
But here the third side length is 2 which does not satisfy the above condition (1).
Hence, a triangle can not have side lengths 8, 4, and 2. (Answer)
