Answer:
8/9
Step-by-step explanation:
4 times 9 vs 8 times 8
8 times 9 vs 9 times 8
=
36/72 vs 64/72
9514 1404 393
Answer:
(b) sin⁻¹
Step-by-step explanation:
The relevant trig function relating angles to sides is ...
Sin = Opposite/Hypotenuse
Here, we have ...
sin(A) = 4/12 = 1/3
A = arcsin(1/30 = sin⁻¹(1/3)
The inverse sine function can be used to find the angle.
Answer:
Step-by-step explanation:
we are given a regular triangular pyramid with a slant height of 9 m and volume of 50 m3. We can get the altitude of the pyramid by sin 60 = h / 9; h is equal to 7.7942 m. Volume is equal to 1/3 h * B, B is equal to 19.2451 m2. perimeter of the base is 3*9 m equal to 27 meters. The lateral area has a formula of 1/2 pl, substituting, lateral area is equal to 121.5 m2.
