Answer:
1/3
Step-by-step explanation:
Hypotenuse = sqrt (7^2 + 2^2) = sqrt 53
sin O = opposite / hypotenuse = 2 / sqrt53 = 0.2747 (to nearest thousandth
(answer)
Answer:
False
Step-by-step explanation:
SA of cone = pi×r×l + pi×r²
= pi×r×(3r) + pi×r²
= 3pi×r² + pi×r²
= 4pi×r²
SA of cylinder = 2pi×r×h + 2pi×r²
= 2pi×r×2r + 2pi×r²
= 4pi×r² + 2pi×r²
= 6pi×r²