Answer:
When 2 angles are put together, they must have a total of 180 degrees.
Step-by-step explanation:
180-39=141
The measure of the missing angle is 141 degrees.
Answer:
The answer is -1.
Step-by-step explanation:
This is because if you multiply two negatives together, it becomes a positive. But if you do -1*-1*-1*-1*-1*-1*-1, it would equal -1. Hope this helps
Answer:
Area = 72.62 m²
Step-by-step explanation:
Area of a triangle with the given three sides is given by,
Area =
Here, s =
And a, b, c are the sides of the triangle.
From the question,
a = 20 m, b = 10 m and c = 15 m
s =
s = 22.5
Substitute these values in the formula,
Area =
=
=
= 72.62 m²
Step-by-step explanation:
2 3 2
----- ÷ ----- - -----
7 4 7.
8 2
----- - -------
21 7
8×1-2×3
------------------
21
8-6
-------
21
2
-----
21
I think it will be helpful for you