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poizon [28]
3 years ago
7

How do you calculate the area and the perimeter of a parallelogram and a triangle?

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
7 0

for parallelograms:

area = b(h)

so basically, the length times the height. just like how you would find the area of a square.

perimeter: just add all of the sides together.

for triangles:

area = 1/2(b) x h

so half the length multiplied by the height. for example, if the length was 4, you have to use half of that. so that means 2 times whatever the height is.

perimeter: again, just add all three sides together

Cloud [144]3 years ago
7 0

For the area of a parallelogram, you must use the formula : base x height

First you figure the height of the shape, and then only multiply that by the base, giving you the area.

For the perimeter, you could find the height, and use pythagoras' theorem to help you find the missing lengths if there are any, and add all sides up.

For the area of a triangle, you must use the formula : (Base x Height) / 2

Simply just by dividing the base by two and multiplying that by the height, of which you could also find with Pythagoras' Theorem if it isn't shown, or just multiply both height and base and diving the product by two.

For the perimeter, use pythagoras' theorem if needed: a^2 + b^2 = c^2

Add all sides up

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miskamm [114]
The problem seems to be lacking a question. But looking for the same problem from another source, we're looking for the new mode after adding the 6 numbers into the data set. 

Mode, in its most basic definition, is the number or data that is most repeated in a data set. For example, in {1, 1, 1, 2, 2, 3}, the most repeated number is 1. Hence, the mode is 1. 

Now, going back to Lucia's problem. Prior to adding the 6 numbers, the mode of the set of 87 numbers is already 31. That means 31 is the most repeated number in the set. Checking the numbers that were added, since another count for 31 is to be added, even if the number of 23, 26, 28, and 40 are increased by 1. 31 will still be the most repeated number in the set. Hence, the mode is still 31.

Answer: 31
6 0
3 years ago
Show work for 1.6 > 1.3
Brrunno [24]
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tester [92]
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Step-by-step explanation:

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