I can't tell what the numbers are on the first one but you got the second one right, and the last one would be different it would be 24 I believe.
Answer:
C) 45 ft²
Step-by-step explanation:
<u>Formulae</u>
Area of a square = x² (where x is the side length)
Area of a triangle = 1/2 × base × height
The surface area of a square pyramid comprises:
- square base
- 4 congruent triangles
⇒ area of square base = 5² = 25 ft²
⇒ area of triangular face = 1/2 × 5 × 2 = 5 ft²
⇒ Total surface area = area of square base + 4 triangular areas
= 25 + 4(5)
= 25 + 20
= 45 ft²
Answer:
Step-by-step explanation:
f(x) = x²
f(2) = 2²
= 4
f(3) = 3²
= 9
hope it helps :)
Answer:
25.12 cm³
Step-by-step explanation:
Formula = πr² * h/3
= 3.14 * 4 * 6/3
= 3.14 * 8
= 25.12
Units = cm³
25.12 cm³
If my answer is incorrect, pls correct me!
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-Chetan K
