Answer: its called a additive inverse
Step-by-step explanation:
This is tricky but I worked out the answer is A
7/25 because you can divide everything. Y 3
Consider one pyramid
Side length of base = 1.5cm and its height is 1 cm
Slant height of one of the lateral faces = sqrt(1^2 + 0.75^2) = 1.25 cm
Area of one of the triangular faces = 0.5 * 1.5* 1.25 = 0.9375 cm^2
There are 8 of these so the required surface area = 8 * 0.9375
= 7.5 cm^2 Answer
Divide numerator and denominator by 6:
12/18 = 2/3
