If the pyramid has base of side w and height h, then each lateral face of the pyramid is a triangle with base = w, and height equal to the slant height:
√(h^2 + (w/2)^2)
similarly, the lateral area of a cone of height h and radius r is
πrs = πr√(r^2+h^2)
so plug in your numbers
_________________________________
1. Use a formula to find the surface area of the square pyramid. (H.6ft.)(W.3ft.)(L.3ft.)
A. 45 ft
B. 81 ft***
C. 36 ft
D. 72 ft
_________________________________
2. Find the lateral area of the pyramid to the nearest whole unit. (H.22)(W.8)(L.8)
A. 176 m
B. 352 m
C. 704 m
D. 416 m***
_________________________________
3. Find the surface area of the cone to the nearest whole unit. (H.7in)(D.8in)
A. 226 in
B. 88 in
C. 377 in
D. 138 in***
_________________________________
4. Find the lateral area of the cone. Use 3.14 for pi and round to the nearest whole unit. (R.15cm)(H. 7 in)
A. 1,319 cm
B. 2,639 cm***
C. 707 cm
D. 2,026 cm
_________________________________
Thank You
5 answers
1. 45 ft²
2. 352 ft²
3. 138 in²
4. 1,319 cm²
100% right ✅ I just took the test
2. 352 ft²
3. 138 in²
4. 1,319 cm²
100% right ✅ I just took the test
stream tarzan and milo x toon
A.
B.
D.
A.
B.
D.
A.
@Don't bother me and @yoyo are correct! 4/4
69 answers