Step-by-step explanation:
curved surface area =
perimeter of triangular base × length
= 3×8 + 12
= 24 + 12
= 36mm^2
total surface area
= curved surface area + 2× area of triangular base
= 36 + 2 × root3 ×8^2 ÷ 4
= 36 + 2 × root3 × 16
= 36 + 2× 27.71
= 36 + 55. 425
= 91.425 mm^2
2/3x - 11 = x + 4 | -4
2/3x - 15 = x | - 2/3x
-15 = 1/3x | • 3
-45 = x
The first bullet is the answer
Answer:
first 3 are Yes on the top. number 4: because they are both coplanar. number 5: Yes. number 6 is no. number 7: Yes. number 8 is plan.
Step-by-step explanation:
Nothing because you can’t gain anything from 0