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Nina [5.8K]
3 years ago
5

How do you find The area of an irregular shape

Mathematics
1 answer:
charle [14.2K]3 years ago
5 0
Regular shapes are shapes that have sides that are all equal and interior angles are also equal.

Irregular shapes are shapes that vary in the measurement of sides and interior angles.

To find the area of an irregular shape, break it down into various regular shape and individually compute its area. Add up all the area of the regular shapes formed from the irregular shape to get the area of the irregular shape.

An example of an irregular shape is the outline of a house. 

Pointed roof over a square room. There are two regular shapes found in this irregular shape. A square and a triangle. Compute its individual area and add up these two areas to get the area of the house.
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The prisms and two nets shown below:<br><br> Plzzz answer part A B and C for BRILLIANT ANSWER
Arlecino [84]
Part A: Net A is correct
Net B is incorrect because de triangular sides do not close the opening left in both sides.

Part B: AB=3 in., BC=5in., CD=8.6in.

Part C: The surface area of the prism is the area of the the big rectangle in the net + the area of the 2 triangles

Area of the big rectangle
8.6• ( 3+4+5)= 103.2 in ^2
Area of the triangles
If we get the 2 trangles together along their longest side we get another rectangle
3•4 =12 in^2

Surface area of prism is 103.2+12=115.2 in^2
5 0
3 years ago
A student selected from a class will be either a boy or a girl. if the probability that a boy will be selected is 0.3, what is t
Otrada [13]
The probability that a girl will be selected from the class is 0.7
8 0
3 years ago
7 + k/3= 18 please help me answer this question it’s due tomorrow
Eddi Din [679]

Answer:

k = 33

Step-by-step explanation:

7 + k/3 = 18

=>7 + k/3 -7 = 18 - 7

=>k/3 = 11

=>(k/3) * 3 = 11 * 3

=>k = 33

8 0
3 years ago
Read 2 more answers
An independent-measures research study was used to compare two treatment conditions with n= 12 participants in each treatment. T
Maurinko [17]

Answer:

(a) The data indicate a significant difference between the two treatments.

(b) The data do not indicate a significant difference between the two treatments.

(c) The data indicate a significant difference between the two treatments.

Step-by-step explanation:

Null hypothesis: There is no difference between the two treatments.

Alternate hypothesis: There is a significant difference between the two treatments.

Data given:

M1 = 55

M2 = 52

s1^2 = 8

s2^2 = 4

n1 = 12

n2 = 12

Pooled variance = [(n1-1)s1^2 + (n2-1)s2^2] ÷ (n1+n2-2) = [(12-1)8 + (12-1)4] ÷ (12+12-2) = 132 ÷ 22 = 6

Test statistic (t) = (M1 - M2) ÷ sqrt [pooled variance (1/n1 + 1/n2)] = (55 - 52) ÷ sqrt[6(1/6 + 1/6)] = 3 ÷ 1.414 = 2.122

Degree of freedom = n1+n2-2 = 12+12-2 = 22

(a) For a two-tailed test with a 0.05 (5%) significance level and 23 degrees of freedom, the critical values are -2.069 and 2.069.

Conclusion:

Reject the null hypothesis because the test statistic 2.122 falls outside the region bounded by the critical values.

(b) For a two-tailed test with a 0.01 (1%) significance level and 23 degrees of freedom, the critical values are -2.807 and 2.807.

Conclusion:

Fail to reject the null hypothesis because the test statistic 2.122 falls within the region bounded by the critical values.

(c) For a one-tailed test with 0.05 (5%) significance level and 23 degrees of freedom, the critical value is 1.714.

Conclusion:

Reject the null hypothesis because the test statistic 2.122 is greater than the critical value 1.714.

6 0
3 years ago
Answer for brainlist &amp; extra points &lt;3
DENIUS [597]

Answer:

Equation:500÷8×2

Answer:125

3 0
3 years ago
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