noobieplayerxd
29.10.2020 •
Mathematics
I need 2 answers please help!.❤️
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Ответ:
48 cm^2
Step-by-step explanation:
We can substitute the h in the given equation with 8.
1/2 * (8+4) * 8
Next we can add inside the parenthesis
1/2* (12) * 8
Another way we can write 1/2* 12 is 12 divided by 2 which is equivalent to 6.
So, now our equation is 6*8
6*8 = 48 so our answer is 48 cm^2
Hope this Helps!!! :)
Ответ:
36
Step-by-step explanation:
we know that the interior angles equal 180 and that the triangles are congruent so, 66 + 78 = 144 so then we have to subtract 180 - 144 and that gives us 36
Hope I helped :)