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emmainna [20.7K]
3 years ago
6

Can someone help me with this and explain​

Mathematics
1 answer:
Alborosie3 years ago
6 0

Answer:

1. ΔCAT ≅ ΔODG by SSS, Angle D equals 45 degrees

Step-by-step explanation:

Triangles can be proven congruent or the same shape and size by 5 postulates:

  • SAS - Side - Angle - Side
  • ASA - Angle - Side - Angle
  • AAS - Angle - Angle - Side
  • SSS - Side - Side -Side
  • HL - Hypotenuse - Leg

To state a triangle is congruent write ΔABC ≅ ΔDEF by ________ and name the pattern. Use the letters for each triangle you see to write or name it.

To identify the pattern, place your pencil on a vertex of the triangle. Trace it and label each congruent part as you come to it as S or A.

For number 1, this would be S - S - S or SSS

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frozen [14]
216.4 is the total cost added up. 

198.77 would be the subtraction of the answer above with the hardware supplies but subtraction would be wrong so you'd have to divide, dividing would get you to 0.0814, the you'll have to divide the decimal by 100 giving you 0.0815.

Do the same steps above but with the paint and hardware. 

52.91/216.4 gives you 0.244501, rounded up would give you 0.000245.

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4 years ago
at the northgate fabric store, there are 5 scrap pieces of cloth. their lengths are 1/2 yrd, 3/10 tard, 5/6 yard, 1/3 yard, and
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Work:
You need to add each fraction together in order to find the total amount of fabric. You should do this by finding common denominators (the number on the bottom of the fraction) and then combining fractions. 
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Sliva [168]

Answer:

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Step-by-step explanation:

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A way you can show work is just not use the commas then subtract then put the commas in when you're done. And, if the bigger number isn't as big or has as many numbers behind the decimal as the first one, add a zero at the end.

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