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zmey [24]
3 years ago
11

A) Why are all parallelograms not rectangles?

Mathematics
1 answer:
GrogVix [38]3 years ago
8 0

a) Rectangles always have 4 right angles (90 degrees), but parallelograms do not always have 4 right angles rather they can, but do not have to. Rectangles have to.

b) A square is a type of rectangle, but a rectangle is not a type of square. Both rectangles & squares have 4 right angles and are always quadrilaterals, but squares always have all sides that have the same length, but rectangles do not have to have their sides all equivalent lengths.

c) In the case of a parallelogram, the opposite sides are equal whereas in a rhombus all four sides are equal.


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B. -8

Step-by-step explanation:

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<h3>How to calculate the depth of the tent?</h3>

Based on the diagram (see attachment) and information provided, we can logically deduce the following parameters (points):

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Next, we would determine the height of the right-angled triangle (ADC) by applying Pythagorean theorem:

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Also, we would determine the area of the triangle (ABC):

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