Step-by-step explanation:
In this question we need to decrease 216 by or 37.5 %.
For this, firstly find 37.5 % of 216.
Now subtracting 81 from 216 to find decrease of 216 by 37.5 %.
So,
216-81 = 135
Hence, 135 is the decrease of 216 by 37.5 %.
A square pyramid is sliced parallel to the base, as shown. What is the area of the resulting two-dimensional cross-section? Squa
re pyramid intersected horizontally by a rectangle. The base of the pyramid measures 10 feet by 10 feet, and the height is 12 feet. The part of the rectangle that intersects the pyramid is a gray square. The square measures 4 feet by 4 feet. A.16 ft² B.40 ft² C.48 ft² D.120 ft²
2 answers:
Answer:
Option A is correct.
Step-by-step explanation:
Given a square pyramid is sliced parallel to the base, we have to find the area of the resulting two-dimensional cross-section.
Square pyramid intersected horizontally by a rectangle. The base of the pyramid measures 10 feet by 10 feet, and the height is 12 feet. The part of the rectangle that intersects the pyramid is a gray square. The square measures 4 feet by 4 feet.
Now, we have to find the area of the resulting two-dimensional cross-section i.e of grey square whose dimensions are 4 feet by 4 feet.
Hence, area of resultant cross-section is 16 square feet.
Option A is correct.
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