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klasskru [66]
3 years ago
5

Geometry one help please!

Mathematics
1 answer:
12345 [234]3 years ago
3 0
What is the question?
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Help ASAP please!!!!!!!!!​​
Katena32 [7]

Answer:

Δ JKL is similar to Δ ABC ⇒ D

Step-by-step explanation:

Similar triangles have equal angles in measures

In ΔABC

∵ m∠A = 15°

∵ m∠B = 120

∵ The sum of the measures of the interior angles of a Δ is 180°

∴ m∠A + m∠B + m∠C = 180°

→ Substitute the measures of ∠A and ∠B

∵ 15 + 120 + m∠C = 180

→ Add the like terms in the left side

∴ 135 + m∠C = 180

→ Subtract 135 from both sides

∴ 135 - 135 + m∠C = 180 - 135

∴ m∠C = 45°

The similar Δ to ΔABC must have the same measures of angles

If triangles ABC and JKL are similar, then

m∠A must equal m∠J

m∠B must equal m∠K

m∠C must equal m∠L

∵ m∠J = 15°

∴ m∠A = m∠J

∵ m∠L = 45°

∴ m∠C = m∠L

∵ m∠J + m∠K + m∠L = 180°

→ Substitute the measures of ∠J and ∠L

∵ 15 + m∠K + 45 = 180

→ Add the like terms in the left side

∴ 60 + m∠K = 180

→ Subtract 60 from both sides

∴ 60 - 60 + m∠K = 180 - 60

∴ m∠K = 120°

∴ m∠B = m∠K

∴ Δ JKL is similar to Δ ABC

6 0
3 years ago
Can someone help me with this problem
expeople1 [14]
Increasing
Increasing
Decreasing
t=3
t=14
V=4
7 0
3 years ago
Read 2 more answers
Soccer balls go on sale for $7.50 each. The store also sells footballs and the manager wants to earn a daily profit of $400 from
Tasya [4]
At $7.50 per soccer ball, they earn a daily profit of $232.50.
The store needs to earn a daily profit of $400 – $232.50 = $167.50 from footballs.
Solve 167.50 = –4x2 + 80x – 150 to find the price for footballs: x = $5.46 and $14.54.
5 0
3 years ago
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What triangle is 8, 11, 12. right, acute, obtuse, none
krek1111 [17]

Answer:

im saying acute

Step-by-step explanation:

7 0
2 years ago
If point Q is translated 5 units to the right and 5 units down what are the coordinates of Q
xeze [42]

Answer:

Q+ (5,-5)

Step-by-step explanation:

If the point is to be moved 5 units down, it means that its 'y' coordinate must be subtracted 5.

Same thing happens with x coordinate, it is moved 5 units to right, it meas that its 'x' coordinate must be summed with 5.

The whole operation can be written as the following addition:

Q + (5,-5)

5 0
3 years ago
Read 2 more answers
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