Answer:
a. 754cm³ (3 s.f.)
b. 415cm² (3 s.f.)
Step-by-step explanation:
Formulas (for easier reference):
Volume of cone: r²
Volume of hemisphere: r³
Surface area of cone without base: rl
Surface area of hemisphere without base: 2r²
We can just apply the formulas for the question:
Volume of toy = ( × 6² × ) + ( × 6³)
= 96 + 144
= 240
= 754cm³ (3 s.f.)
Surface area of toy = ( × 6 × 10) + (2 × × 6²)
= 60 + 72
= 132
= 415cm² (3 s.f.)
1 Liter is equal to 1000 milliliters, so 38L=38000ml. You can remember the order of metric conversions with the acronym (K)ing (H)enry (D)oesn’t (U)sually (D)rink (C)hoclate (M)ilk
Here, EJI + FJE = 180 [ Linear-Pair Equation ]
FJE + 135 = 180
FJE = 180 - 135
FJE = 45
Now, FJH + FJE = 180 [Linear-Pair Equation ]
FJH + 45 = 180
FJH = 180 - 45
FJH = 135
Hope this helps!
Here is a photo of how I got the answer and what the answer is (Red and blue represent my work, while highlighter shows what the answer is):