Annerosedullaviz
Answered

A. On a separate sheet of paper, find the surface area of the following figures: adm A 1. 7 cm 4dm 2. 8cm 5. 10cm 4cm 12 cm 4 ft r = 2m 3. 6 ft 6. h = 6m 8 ft​

A On A Separate Sheet Of Paper Find The Surface Area Of The Following Figures Adm A 1 7 Cm 4dm 2 8cm 5 10cm 4cm 12 Cm 4 Ft R 2m 3 6 Ft 6 H 6m 8 Ft class=

Sagot :

Kolot21viz
Answer:

1. 150 cm²

2. 150.8 cm²

3. 76 m²

4. 452.39 cm²

5. 81.97 cm²

Step-by-step explanation:

1. A=6a²

=6×5²

=150

2. A=2πrh+2πr²

=2×π×3×5+2×π×3²

≈150.79645

3. A=2(wl+hl+hw)

=2×(2×4+5×4+5×2)

=76

4. A=4πr²

=4×π×6²

≈452.38934

5. A=a²+2a√a²/4+h²

=4²+2×4×√4²/4+8²

=81.96969