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lozanna [386]
3 years ago
14

OVER HERE What is the perimeter of a triangle of sides 10cm, 20cm and 30cm

Mathematics
2 answers:
vagabundo [1.1K]3 years ago
8 0

Answer:

60 cm

Step-by-step explanation:

larisa86 [58]3 years ago
6 0

60 cm

add the all together

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Oof
Marizza181 [45]

Answer:

triangle C has the largest area.

Step-by-step explanation:

From the the three triangles A, B, C based on the area occupied by the triangles, it can be seen that triangle C occupies the largest area.

On the centimetre grid, let each box represent one unit. For triangle A, the base is 2 boxes (i.e 2 units) and the height is 3 units, For triangle B, the base is 2 units and the height is 3 units while for triangle C, the base is 3 units and the height is 3 unit. The area of a triangle is given by:

Area = \frac{1}{2}base*height

For triangle A:

Area = \frac{1}{2}base*height = \frac{1}{2} *2*3=3 \ unit^2

For triangle B:

Area = \frac{1}{2}base*height = \frac{1}{2} *2*3=3 \ unit^2

For triangle C:

Area = \frac{1}{2}base*height = \frac{1}{2} *3*3=4.5 \ unit^2

Therefore, triangle C has the largest area.

8 0
4 years ago
Read 2 more answers
Write an equation of the line that passes through the points (1,4), (3,7)​
victus00 [196]

Answer:

y=1.5x+2.5

Step-by-step explanation:

First you find the slope:

\frac{7-4}{3-1} or \frac{3}{2}

lets change it into 1.5

Then write it in point-slope: (I used (1,4))

y-4=1.5(x-1)

y-4=1.5x-1.5

y=1.5x+2.5

4 0
3 years ago
you invest 2000 in a simple interest account. The balance after 8 years is 2720. What is the interest rate?
Burka [1]

Answer:

4.5%

Step-by-step explanation:

Find interest rate by using the formula I=P⋅i⋅t, where I is interest, P is total principal, i is rate of interest per year, and t is total time in years.


I = $720, P = $2000 and t = 8 years, so

I = P*i*t

i = I/P*t

i = 720 / 2000 * 8

i = 0.045 = 4.5% per year

3 0
4 years ago
three kids named ricky, bobby, and terry have a total of 68 tech decks. Ricky has 8 more than bobby. terry has triple the number
olchik [2.2K]
B: x
T: 3x
R: x + 8

x + 3x + (x+8) = 68
5x + 8 = 68
5x = 60
x = 12

B: 12
T: 36
R: 20

3 0
4 years ago
A map uses a scale of 2 cm = 50 kilometers. On the map, two cities are 9 cm apart, how far apart are they in real life?
bonufazy [111]

Answer:

they are in 225kilometers apart.

hope it helps.

3 0
3 years ago
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