Answer:
The answer to your question is right
Step-by-step explanation:
Acute is a triangle in which three internal angles are acute (less than 90°). The other angles measure 90°, so this option is incorrect.
Obtuse is a triangle that has one angle greater than 90°. This option is incorrect because of the angles of this triangle measure 30, 60, 90.
Equiangular is a triangle in which angles measures the same. This option is wrong because the angles have different values.
A Right triangle is a triangle that has an angle that measures 90°. This option is right.
Answer:
The answer is the option A

Step-by-step explanation:
Let
x-------> the width of the border
we know that
The total area of the window plus the border is equal to


Using a graphing tool -----> to resolve the quadratic equation
see the attached figure
The solution is

Answer:
14 and 28
Step-by-step explanation:
The answer is

÷ 2 =

÷
If

÷

=

, then:

÷

=
Now, 2 can be canceled out from

:
I think it’s D) additional property of equality