Number one is 68 you have to divide on this download photomath its better because all you have to do is take a picture and it shows you how to do it ;)
The number 4000 is 400 times greater than the the number 10.
The circumference formula is
C=Diameter x π=22 x π, the area formula is A=<span>π x R²
or R=</span><span>D/2=22/2=11
the answer is </span><span>d. C = 22π; A = 121π</span>
Part a:-
The base of each triangle is 4 inches long.
Their height is 3/2 * 4 = 6 inches.
b
The combined area of the triangular faces = 4 * 1/2 * 4 * 6 = 48 sq ins
c
Surface area of the pyramid = 48 + area of base = 48 + 16 = 64 sq ins.
