u just have to flip the signs,
the answer is C
Answer:
130°
Step-by-step explanation:
Answer:
Thus, option A is correct.
Explanation:
<u>match the proportions</u>
<u>set up a equation:</u>


surface are is basically the area of all the shapes in the prism, so :
(2 x area of the triangles on the sides) + area of upper rectangle + area of bottom rectangle + area of side rectangle
(2x((1/2) x 12 x 5)) + (13 x 10) + (12 x 10) + (10 x 5)
Try using the equation v= pi(r)^2