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sergey [27]
3 years ago
12

How can you prove a triangle is an equilateral triangle? (4 points)

Mathematics
1 answer:
Phoenix [80]3 years ago
6 0

Answer:

A would be correct.

Step-by-step explanation:

Just show that triangles AOB,BOC,COA are all congruent (then all the sides of triangle ABC must be equal). To show this, note that triangles A′BO,A′OC are equilateral since they are all radius of the circles. Line OA′ is perpendicular to line BC. Hence, ∠OBC=∠OCB=30∘.

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The distance between Joshua's home and school is 800 m. Joshua takes 5 min to walk
Fynjy0 [20]

Answer:

= 0.38 m/s

Step-by-step explanation:

▪Total distance = 800 m

5 min = 100 m

▪Remaining distance = 800 - 100 = 700 m

20 min = 700 m

▪Total time taken = 20 + 10 + 5 = 35 min

If 1 min = 60 sec

What about 35 min = ?

= 35 x 60

= 2100 sec

▪Average speed = TD ÷ TT

= 800 ÷ 2100

= 0.38 m/s

7 0
2 years ago
Sin x = cos 15 and 0 < x < 90, what is x
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Answer:

a letter

Step-by-step explanation:

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Can anyone help me with this geometry two column proof
Anastasy [175]

Answer:

Step-by-step explanation:

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