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Leya [2.2K]
3 years ago
6

What is the area of the composite figure?

Mathematics
1 answer:
Ray Of Light [21]3 years ago
6 0

Answer:


Step-by-step explanation:

The figure is made up of a square with side 4 cm and 3 semicircles of radius 2 cm.

A = area of square + area of 3 semicircles

A = (4 cm)^2 + 3 * (1/2) pi * (2 cm)^2

A = 16 cm^2 + (1/2) 12pi cm^2

A = (6pi + 16) cm^2

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PLEASE HELP ME BAD AT GEOMETRY PLEASE THANKS A WHOLE BUNCH
Setler [38]
V = π r² h

V = π (4)² 8
 
V = 402.12

Hope this helps :)
5 0
3 years ago
Question 5(Multiple Choice Worth 1 points) (03.03 LC) If a figure has been dilated by a scale factor of 4, which statement expla
Novosadov [1.4K]

Answer:

A translation can map one angle unto another since dilations preserve angle measures of triangles

Step-by-step explanation:

The dilation of the figure by a scale factor of 4 gives an image that is 4 times the size of the original figure. However, the interior angles of the image and the original figure remain the same

A translation is a rigid transformation, such that the image and the preimage of a translation transformation have the same dimensions and angles

A translation of three consecutive non-linear points of the dilated image to the vertex and the two lines joining the corresponding point on the image, translates the angle at the given vertex

The above process can be repeated, to translate a second angle from the image to the preimage, from which it can be shown that the two figures are similar using Angle Angle, AA, similarity postulate

8 0
3 years ago
Find the value of each variable
garri49 [273]
Triangles add to 180° and there is already 100° shown inside of the triangle (30° plus 70° = 100°). 180° -100° = 80°, which is x. X and y are vertical angles, so y is also 80°. The answer is B.
8 0
2 years ago
Can you please help me out
Taya2010 [7]

The bag contains,

Red (R) marbles is 9, Green (G) marbles is 7 and Blue (B) marbles is 4,

Total marbles (possible outcome) is,

\text{Total marbles = (R) + (G) +(B) = 9 + 7 + 4 = 20 marbles}

Let P(R) represent the probablity of picking a red marble,

P(G) represent the probability of picking a green marble and,

P(B) represent the probability of picking a blue marble.

Probability , P, is,

\text{Prob, P =}\frac{required\text{ outcome}}{possible\text{ outcome}}\begin{gathered} P(R)=\frac{9}{20} \\ P(G)=\frac{7}{20} \\ P(B)=\frac{4}{20} \end{gathered}

Probablity of drawing a Red marble (R) and then a blue marble (B) without being replaced,

That means once a marble is drawn, the total marbles (possible outcome) reduces as well,

\begin{gathered} \text{Prob of a red marble P(R) =}\frac{9}{20} \\ \text{Prob of }a\text{ blue marble =}\frac{4}{19} \\ \text{After a marble is selected without replacement, marbles left is 19} \\ \text{Prob of red marble + prob of blue marble = P(R) + P(B) = }\frac{9}{20}+\frac{4}{19}=\frac{251}{380} \\ \text{Hence, the probability is }\frac{251}{380} \end{gathered}

Hence, the best option is G.

5 0
1 year ago
0.85 3/5 0.15 7/10 in order from least to greatest
nydimaria [60]

0.85=0.85

3/5=0.60

0.15=0.15

7/10=0.70

L-G

0.15, 3/5, 7/10, 0.85

7 0
2 years ago
Read 2 more answers
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